Agricultural and Biological Sciences › Animal Science and Zoology

Rabbits: Nutrition, Reproduction, Health

Works Count: 45469

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This cluster of papers focuses on the perception and factors influencing the quality of rabbit meat, including reproductive performance, dietary fiber, growth, carcass characteristics, microbiota, welfare, and nutrition. It covers a wide range of research areas related to rabbit meat production and consumption.

Keywords

Rabbit Meat; Quality; Factors; Reproductive Performance; Dietary Fiber; Growth; Carcass Characteristics; Microbiota; Welfare; Nutrition

The Biology of the Laboratory Rabbit

1994-01-01

Patrick J. Manning , Daniel H. Ringler , Christian E. Newcomer

Knobil and Neill's Physiology of Reproduction

2015-01-01

T. M. Plant , Anthony J. Zeleznik , David F. Albertini +7 more

The natural regulation of animal numbers

1972-03-01

David Lack

The Relation of Cellulose and Lignin Content to the Nutritive Value of Animal Feeds

1938-04-01

E. W. Crampton , L. A. Maynard

Growth performance and reproductive traits at first parity of New Zealand white female rabbits as affected by heat stress and its alleviation under Egyptian conditions.

2001-01-01

Ibrahim Marai , Mohamed S. Ayyat , U.M. Abd El-Monem

Biology and Diseases of the Ferret

2014-03-28

James G. Fox , Robert P. Marini

Section I: Biology and Husbandry. Chapter 1 Taxonomy, History, and Use. (James G. Fox). Chapter 2 Anatomy of the Ferret. (Howard E. Evans and Nguyen Quoc An). Chapter 3 Neuroanatomy … Section I: Biology and Husbandry. Chapter 1 Taxonomy, History, and Use. (James G. Fox). Chapter 2 Anatomy of the Ferret. (Howard E. Evans and Nguyen Quoc An). Chapter 3 Neuroanatomy of the Ferret Brain. (I. Nigel C. Lawes and Paul L. R. Andrews). Chapter 4 Physiology of the Ferret. (Mark T. Whary and Paul L.R. Andrews). Chapter 5 Nutrition. (James G. Fox and Daniel E. McLain). Chapter 6 Housing and Management. (James G. Fox). Chapter 7 Normal Clinical and Biologic Parameters. (James G. Fox). Chapter 8 Growth, Reproduction, and Breeding. (James G. Fox and Judi A. Bell). Section II: Diseases and Clinical Applications. Chapter 9 Hematopoietic Diseases. (Susan E. Erdman, Xiantang Li, and James G. Fox). Chapter 10 Diseases of the Genitourinary System. (James G. Fox, Renee C. Pearson, and Jusi A. Bell). Chapter 11 Diseases of the Gastrointestinal System. (James G. Fox). Chapter 12 Diseases of the Endocrine System. (James G. Fox and Robert P. Marini). Chapter 13 Other Systemic Diseases. (James G. Fox). Chapter 14 Bacterial and Mycoplasmal Disease. (James G. Fox). Chapter 15 Viral Diseases. (James G. Fox, Renee C. Pearson, and John R. Gorham). Chapter 16 Parasitic Diseases. (James G. Fox). Chapter 17 Mycotic Diseases. (James G. Fox). Chapter 18 Neoplastic Diseases. (Xiantang Li and James G. Fox). Chapter 19 Anesthesia, Surgery, and Biomethodology. (Robert P. Marini and James G. Fox). Section III: Research and Applications. Chapter 20 Viral Disease Models. (Renne C. Pearson and John R. Gorham). Chapter 21 Use of the Ferret in Cardiovascular Research. (James P. Morgan and Kerry E. Travers). Chapter 22 use of the Ferret in Behavioral Research. (Michael J. Baum). Chapter 23 Use of the Ferret in Reproductive Neuroendocrinology. (Michael J. Baum). Chapter 24 use f the Ferret in Parasitologic Research. (Mark L. Eberhard). Index.

Quantitative histology of Wallerian degeneration: I. Nuclear population in rabbit sciatic nerve.

1946-01-01

M. Abercrombie , Molly Johnson

Principles of conservation biology

1994-12-01

Joan L. Morrison

A review of the nutritional value of legumes and their effects on obesity and its related co‐morbidities

2014-01-17

Candida J. Rebello , Frank L. Greenway , John W. Finley

Summary Since the 1970s, the proportion of overweight and obese people in the U nited S tates has grown at an alarming rate. An awareness of the consequences of obesity … Summary Since the 1970s, the proportion of overweight and obese people in the U nited S tates has grown at an alarming rate. An awareness of the consequences of obesity on the health and well‐being of individuals is evident in the plethora of strategic plans at the local and national levels, most of which have largely fallen short of their goals. If interventions continue to be unsuccessful, it is estimated that approximately three of four A mericans will be overweight or obese by 2020. Prevention of excess weight gain can be accomplished with relatively small changes in lifestyle behaviours to control body weight. Small sustainable changes are perhaps better than efforts to achieve larger changes that cannot be sustained. Legumes can be a valuable food by which the needs of the undernourished or under‐served populations could be met. They can be incorporated into meat products, such as sausages and burgers, to lower the energy density of these foods while providing important nutrients. Replacing energy‐dense foods with legumes has been shown to have beneficial effects on the prevention and management of obesity and related disorders, such as cardiovascular disease, diabetes and the metabolic syndrome. This review explores the nutritional value and obesity‐related health benefits of legume consumption while focusing on pulses.

Rabbits’ productive, reproductive and physiological performance traits as affected by heat stress: a review

2002-12-01

Ibrahim Marai , Alsaied Alnaimy Mostafa Habeeb , A. E. Gad

THE COMPARATIVE BEHAVIOR OF MAMMALIAN EGGS IN VIVO AND IN VITRO

1935-11-01

Gregory Pincus , E. V. Enzmann

1. A definite chronological sequence of events occurs in the eggs and follicles of rabbits after mating or after the injection of ovulation-inducing substances. The follicle secretes secondary liquor folliculi, … 1. A definite chronological sequence of events occurs in the eggs and follicles of rabbits after mating or after the injection of ovulation-inducing substances. The follicle secretes secondary liquor folliculi, and there occurs a separation of the corona radiata from strands connecting it to the follicle cells. The ovum goes through nuclear maturation with as climax the production of the first polar body by the 8th hour after copulation. 2. Thyroxin injections cause indirectly the same effects as mating or pituitary injections but no ovulation occurs. The thyroxin effect occurs later than the pituitary effect and is due to an initiation of atresia in the follicles. 3. Explantation of ova results in typical maturation phenomena which are apparently unaffected by the presence of pituitary hormones or of thyroxin in the culture medium. 4. It is concluded that maturation of the ovum can be obtained simply by isolating it from the normal follicular environment. 5. Normal fertilization can be secured with eggs removed from the follicles.

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The mechanical consequences of variation in the mineral content of bone

1969-03-01

John D. Currey

Conditioning of the nictitating membrane of the rabbit as a function of CS-US interval.

1964-04-01

Neil Schneiderman , I. Gormezano

Phylogenetic position of the order Lagomorpha (rabbits, hares and allies)

1996-01-01

Dan Graur , Laurent Duret , Manolo Gouy

The role of rabbit meat as functional food

2011-02-26

Antonella Dalle Zotte , Zsolt Szendrő

Rabbit: Frequency of Suckling in the Pup

1965-12-31

M. X. Zarrow , Victor H. Denenberg , Clark O. Anderson

Rabbit does were given free access to their young, access once a day, and access twice a day. In all three groups the young were nursed only once every 24 … Rabbit does were given free access to their young, access once a day, and access twice a day. In all three groups the young were nursed only once every 24 hours. Growth curves for the pups from day 2 of age to day 30 were identical for all three groups. The restriction of suckling to once a day appears to depend on the mother and not the pups.

A schematic eye for the rabbit

1972-01-01

A. Hughes

Parasitism and group size in social animals: a meta-analysis

1995-12-01

Isabelle M. Côté , Robert Poulin

Journal Article Parasitism and group size in social animals: a meta-analysis Get access Isabelle M. Côté, Isabelle M. Côté aDepartment of Zoology, University of TorontoToronto, Ontario M5S 1A1, Canada Search … Journal Article Parasitism and group size in social animals: a meta-analysis Get access Isabelle M. Côté, Isabelle M. Côté aDepartment of Zoology, University of TorontoToronto, Ontario M5S 1A1, Canada Search for other works by this author on: Oxford Academic Google Scholar Robert Poulinb Robert Poulinb bDepartment of Zoology, University of OtagoPO Box 56, Dunedin, New Zealand Search for other works by this author on: Oxford Academic Google Scholar Behavioral Ecology, Volume 6, Issue 2, Winter 1995, Pages 159–165, https://doi.org/10.1093/beheco/6.2.159 Published: 01 December 1995 Article history Received: 06 October 1993 Revision received: 15 March 1994 Accepted: 28 March 1994 Published: 01 December 1995

Factors Governing the Hunting Behaviour and Selection of Food by the Great Tit (Parus major L.)

1970-10-01

T. Royama

Indicators of poor welfare

1986-11-01

Donald M. Broom

Effect of ascorbic acid and Vitamin E supplementation on semen quality and biochemical parameters of male rabbits

2003-01-30

Mokhtar I. Yousef , Gamil M. Abd‐Allah , K.I. Kamel

EUROPEAN REFERENCE METHOD FOR IN VIVO DETERMINATION OF DIET DIGESTIBILITY IN RABBITS

2010-07-01

Pérez J.M , François Lebas , Thierry Gidenne +4 more

This paper describes a standardized method for in vivo determination of total digestibility in rabbits. This method was working out within the European Group on Rabbit Nutrition (EGRAN) which involves … This paper describes a standardized method for in vivo determination of total digestibility in rabbits. This method was working out within the European Group on Rabbit Nutrition (EGRAN) which involves six laboratories from five countries (Belgium, France, ltaly, Portugal and Spain). The aim of the group was to propose a method at once reliable, quick and- simple. This new rnethod can be regarded as a baseline for calibrating individual laboratory procedures. The method is based on 7 to 8 weeks old rabbits caged individually and fed ad libitum. The pre-experimental period lasts 7 days and the collection period only 4 days. For either feed and faeces, standardized conditions of sampling and drying are described.

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The maternal effects on growth and conformation in shire horse-shetland pony crosses

1938-06-16

Arthur Walton , F. R. S. John Hammond

The relative importance of heredity and environment in determining the size, development, and ultimate proportions of animals has attracted some scientific study and discussion, but little planned experimentation has been … The relative importance of heredity and environment in determining the size, development, and ultimate proportions of animals has attracted some scientific study and discussion, but little planned experimentation has been attempted with mammals. In the mammal the early and formative stages of development take place in the uterus, where the environment is remarkably constant, and it is not easy to subject the foetus to varying conditions and at the same time not overstep the normal physiological limits. Previous work on the rabbit (Hammond 1934 a ; Wishart and Hammond 1933), however, has shown that the size of young at birth is approximately inversely proportional to the number in the litter, and it appears probable that some internal secretion or metabolic product of the mother forms a limiting factor in the growth of the embryo. In a monotocous species this effect does not appear, although exceptional twinning or polytocous births reveal its existence, the young at birth being regularly smaller. That the absolute amount of this hypothetical growth-promoting substance may be related in some way with the size of the mother is suggested by the figures of Gregory (1930), which show that the average number of ova of rabbits increases with the average size of the strain. In a monotocous species therefore the size of the mother might determine the size of the offspring at birth. This is also suggested by the results of reciprocal crosses between donkey and horse. The mule (donkey ♂ x horse ♀) is larger than the hinny (horse ♂ x donkey ♀) (Plumb 1916). Since, however, in a species cross the objection may be raised that abnormal genetic segregation might affect the result, we selected for our experiment two breeds of the same species, but of markedly different size, namely, the Shire horse and the Shetland pony, and reciprocal crosses were made to see how far the size of the mother would affect the size of the offspring. No genetical analysis of size inheritance in horses has yet been attempted, and therefore it may be said that the genetic potentialities of our material were unknown. In the absence of evidence to the contrary, however, we considered it justifiable to assume, on the basis of much genetical experimentation on size inheritance, that a large number of factors would be involved,that segregation and recombination would be at random, and that the off spring of the two breeds would be genetically intermediate, irrespective of which way the cross was made. Any difference between the offspring of the reciprocal crosses would therefore be due not to chromosomal differences but to differences in the environment brought about by difference in the size of the mother. In other words we would have a controlled experiment in which “Mother-size” was the only or predominating variable. The horse is particularly well adapted for studying the effects of maternal influence on the offspring, since the duration of pregnancy is relatively long (11 months) and the foal is born in an advanced stage of development, particularly with regard to the skeleton (see Meek 1901). Consequently, the effects of maternal influence acting over a long and formative period should be well marked.

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Pathology of Laboratory Rodents and Rabbits

2007-09-26

D. H. Percy , Stephen W. Barthold

Mouse: Nomenclature Anatomic Features Genetically Engineered Laboratory Mice Viral Infections Bacterial Infections, Mycotic Infections Parasitic Diseases Nutritional and Metabolic Disorders Behavioural Disorders Environment-Related Disease Aging, Degenerative and Miscellaneous Disorders Genitourinary … Mouse: Nomenclature Anatomic Features Genetically Engineered Laboratory Mice Viral Infections Bacterial Infections, Mycotic Infections Parasitic Diseases Nutritional and Metabolic Disorders Behavioural Disorders Environment-Related Disease Aging, Degenerative and Miscellaneous Disorders Genitourinary Disorders Neoplasms. Rat: Anatomic Features Viral Infections Bacterial Infections Pulmonary Lesions of Unknown Etiology Mycotic Infections Parasitic Diseases Aging and Degenerative Disorders Neoplasms. Hamster: Anatomic Features Viral Infections Bacterial and Mycotic Infections Parasitic Diseases Nutritional and Metabolic Disorders Environmental, Genetic and Other Disorders Diseases Associated with Aging Neoplasms. Gerbil: Anatomic Features Viral Infections Bacterial Infections Parasitic Diseases Genetic Disorders Toxic and Metabolic Disorders Diseases Associated with Aging Neoplasms. Guinea Pig: Anatomic Features Viral Infections RNA Viral Infections Bacterial Infections Mycotic Infections Parasitic Diseases Nutritional, Metabolic and Other Disorders Diseases Associated with Aging Neoplasms. Rabbit: Anatomic Features Viral Infections Bacterial Infections Mycotic Infections Parasitic Diseases Miscellaneous Disorders Nutritional, Toxic and Metabolic Diseases Hereditary Disorders Neoplasms.

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HARMONIZATION OF CRITERIA AND TERMINOLOGY IN RABBIT MEAT RESEARCH. REVISED PROPOSAL

2010-07-02

A. Blasco , J. Ouhayoun

The harmonization of rabbit carcass criteria is a result of an international work. lts task was to specify the main traits to be considered from the birth of the animal … The harmonization of rabbit carcass criteria is a result of an international work. lts task was to specify the main traits to be considered from the birth of the animal to the carcass analysis, to define these traits with enough accuracy and to propose a common terminology. The work concerns: 1-growth, consumption and breeding measurements, preslaughter handling and slaughter processing, 2- dressing out percentage analysis, 3- measurements or prediction of chilled and reference carcass composition. The proposal described in this work updates the former proposal published in 1993, and has the status of official document of the WRSA.

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Interactions Between Woody Plants and Browsing Mammals Mediated by Secondary Metabolites

1991-11-01

John P. Bryant , Frederick D. Provenza , John Pastor +3 more

Mammals must overcome several challenges to exploit woody plants; these include variation among plant species, individuals, growth stages, and parts in their nutritional value and mechanical and chemical defenses (91). … Mammals must overcome several challenges to exploit woody plants; these include variation among plant species, individuals, growth stages, and parts in their nutritional value and mechanical and chemical defenses (91). The latter are especially significant because woody plants produce a variety of secondary metabolites (56), many of which are chemical defenses against browsing by mammals and some of which appear to be an evolutionary 431 0066-4162/91/1120-043 1$02.00

Perception of rabbit meat quality and major factors influencing the rabbit carcass and meat quality

2002-05-01

Antonella Dalle Zotte

HARMONIZATION OF CRITERIA AND TERMINOLOGY IN RABBIT MEAT RESEARCH

2010-06-30

A. Blasco , J. Ouhayoun , G. Masoero

The harmonization of rabbit carcass criteria is a result of an international work. lts task was to specify the main traits to be considerad from the birth of the animal … The harmonization of rabbit carcass criteria is a result of an international work. lts task was to specify the main traits to be considerad from the birth of the animal to carcass analysis, to define these traits with enough accuracy and to propose a common terminology. Work on harmonization has been initialized by the Mediterranean Rabbit Group Conference (BLASCO, OUHAYOUN and MASOERO, 1992), completad by several research teams and, finally, discussed during a round table of the Vth World Rabbit Congress (Corvallis, 1992). The proposal described in this work concerns: 1- growth, consumption and breeding measurments, preslaughter handling and slaughter processing, 2- dressing percentage analysis, 3- measurments or prediction of commercial and reference carcass composition. The work represents an official document of the World Rabbit Science Association. A commission has been created to examine the efficiency of the proposed criteria and to modify them according to what the scientific development and the practica! experience or thei use would recommend.

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Rabbit genome analysis reveals a polygenic basis for phenotypic change during domestication

2014-08-28

Miguel Carneiro , Carl‐Johan Rubin , Federica Di Palma +7 more

The genetic changes underlying the initial steps of animal domestication are still poorly understood. We generated a high-quality reference genome for the rabbit and compared it to resequencing data from … The genetic changes underlying the initial steps of animal domestication are still poorly understood. We generated a high-quality reference genome for the rabbit and compared it to resequencing data from populations of wild and domestic rabbits. We identified more than 100 selective sweeps specific to domestic rabbits but only a relatively small number of fixed (or nearly fixed) single-nucleotide polymorphisms (SNPs) for derived alleles. SNPs with marked allele frequency differences between wild and domestic rabbits were enriched for conserved noncoding sites. Enrichment analyses suggest that genes affecting brain and neuronal development have often been targeted during domestication. We propose that because of a truly complex genetic background, tame behavior in rabbits and other domestic animals evolved by shifts in allele frequencies at many loci, rather than by critical changes at only a few domestication loci.

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Dahl salt-susceptible and salt-resistant rats. A review.

1982-11-01

John P. Rapp

Role of mother-young interactions in the survival of offspring in domestic mammals

2000-09-01

Raymond Nowak

The defining characteristic of mammals is that females nurse and care for their young; without this, the neonate has no chance to survive. Studies on wild and domestic species show … The defining characteristic of mammals is that females nurse and care for their young; without this, the neonate has no chance to survive. Studies on wild and domestic species show that the neonatal period is the most critical step in the lifetime of a mammal. This review compares three well-studied species (the rabbit, pig and sheep) that differ in their parental strategies and in the problems that neonates have to overcome. As a general trend, mother-young interactions vary according to the maturity of the newborn, and the size of the litter. Neonatal survival relies to a great extent on an environment that is ecologically appropriate for the developmental stage of the neonate, and on optimum interactions with the mother. Adaptive maternal care supposes that the mother provides the basic needs of the neonate: warmth (in pigs and rabbits) or shelter, food, water and immunological protection (via colostrum) and, in some instances, protection from predators and other conspecifics. A major risk facing all neonates, other than the birth process itself, is inadequate colostrum intake owing to delayed suckling or competition with siblings, which leads to starvation, hypothermia or even crushing, as has been observed in pigs.

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Pathologic Characterization of Brown Norway, Brown Norway x Fischer 344, and Fischer 344 x Brown Norway Rats With Relation to Age

1996-01-01

Ruth D. Lipman , Clarence E. Chrisp , D.G. Hazzard +1 more

The rat is a common laboratory animal utilized in a variety of investigations including experimental gerontology. Gerontologic investigations can be compromised when the differences observed when comparing young and old … The rat is a common laboratory animal utilized in a variety of investigations including experimental gerontology. Gerontologic investigations can be compromised when the differences observed when comparing young and old animals are actually differences between normal and disease states. It is of critical interest to know the pathology of the animals being studied and to understand the impact of these disease processes on the parameters being measured. The incidence and average age of occurrence for lesions have been characterized and are reported here for one inbred (Brown Norway) and two hybrid strains (Brown Norway × Fischer 344 and Fischer 344 × Brown Norway) of rat. Total lesion incidence functions as a biomarker of aging for all of the strains examined (p ≤ .00001). These three genotypes have significantly lower incidence of several major pathologic processes (including glomerulonephritis, retinal atrophy, and leukemia) than do the Fischer 344 and the Wistar rats, two commonly utilized strains. Additionally, the BN and F344 × BN F1 hybrid attain 50% mortality at 130 and 146 weeks of age, respectively, which is significantly greater than the 103 weeks for the F344 rat. It is hoped that access to basic information on these three rat genotypes will increase their utilization by the community of gerontologic scientists.

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Functional Anatomy of the Masticatory Apparatus in the Rabbit (Oryctolagus Cuniculus L.)

1980-01-01

R. Dantuma , W.A. Weijs

Jaw muscle activity and mandibular movements were studied in the domestic rabbit by quantitative electromyography and cineradiography. Mandibular movement profile and occlusal interaction depend on the consistency of the food … Jaw muscle activity and mandibular movements were studied in the domestic rabbit by quantitative electromyography and cineradiography. Mandibular movement profile and occlusal interaction depend on the consistency of the food masticated. Minimal vertical and maximal transverse jaw excursions combined with initial edge-to-edge apposition of cheek tooth ridges, followed by an oblique antero-medial shearing movement of the lower teeth into intercuspation characterize hay mastication. This movement is followed by a purely transverse grinding stroke guided by the interlocked ridges and valleys of the teeth. In carrot mastication a vertical, crushing movement predominates. In laboratory pellets, the movement profile is intermediate; occlusal movement is usually confined to a transverse grinding stroke. During chewing jaw closure and deflection toward the working side are caused by simultaneous action of balancing side superficial masseter and medial pterygoid and working side deep masseter and temporalis. The lingually directed power stroke is produced by working side superficial masseter and medial pterygoid and balancing side deep masseter and temporalis. Firing levels are higher on the working than on the balancing side and decrease from hay to pellets to carrot. Transverse muscle force components, generated mainly by the pterygoids also decrease in the series hay-pellets-carrot. The ratio between forces on working and balancing sides allows the balancing side joint to act as a fulcrum; the working side joint remains unloaded. During biting joints are loaded symmetrically. The unique cheek tooth structure allows lagomorphs to apply various combinations of crushing, shearing and grinding forces to their food. By combining strong protractive and transverse muscular forces they can adjust bite force direction. It is argued that this versatility enables them to utilize a wide variety of vegetable matter as food and remain generalized and adapted to different niches.

Effects of dietary protein on turnover, oxidation, and absorption of cholesterol, and on steroid excretion in rabbits.

1980-07-01

Murray W. Huff , K. K. Carroll

Rabbits fed a low fat, cholesterol-free, semipurified diet containing casein became hypercholesterolemic (=300 mg/dl) after 5 weeks on diet.Rabbits on a similar diet containing soy protein isolate had low plasma … Rabbits fed a low fat, cholesterol-free, semipurified diet containing casein became hypercholesterolemic (=300 mg/dl) after 5 weeks on diet.Rabbits on a similar diet containing soy protein isolate had low plasma cholesterols comparable to those on commercial feed (40- 60 mg/dl).Cholesterol turnover, which conformed to a twopool model, was determined by analysis of the decay of plasma cholesterol specific activity after a single intravenous injection of [26-14C]cholesterol.Rabbits on the soy protein diet or commercial feed showed a much faster rate of cholesterol turnover and a reduced size of pool A compared to rabbits on the casein diet.They also oxidized [26-14C]cholesterol to respiratory I4CO2 at much faster rates.Analysis of fecal steroids by gas-liquid chromatography indicated that bile acid and neutral steroid excretion was increased on the soy protein and commercial diets, relative to the casein diet.Cholesterol was absorbed to a greater extent on the casein diet.Addition of 15% (w/w) butter to the semipurified diets had little effect on the above parameters of cholesterol metabolism.Comparison of cholesterol turnover measured by kinetic analysis, combined sterol balance, or analysis of fecal steroids by gas-liquid chromatography, showed that all three methods gave similar results.Measurement of bile acid production by oxidation of [26-'4C]cholesterol to respiratory 14C02 also gave results comparable to those obtained by analysis of fecal bile acids.

Patterns of Mammalian Reproduction

1965-05-01

Charles A. Long , S. A. Asdell

Asdell, S. A. Patterns of Mammalian Reproduction, 2nd ed. Cornell University Press, Ithaca, New York, ix + 670 pp., 1 fig., 17 tables. 1964. Price $9.75 Get access Asdell S. … Asdell, S. A. Patterns of Mammalian Reproduction, 2nd ed. Cornell University Press, Ithaca, New York, ix + 670 pp., 1 fig., 17 tables. 1964. Price $9.75 Get access Asdell S. A.Patterns of Mammalian Reproduction, 2nd ed. Cornell University Press, Ithaca, New York, ix + 670 pp., 1 fig., 17 tables. 1964. Price $9.75. Charles A. Long Charles A. Long Search for other works by this author on: Oxford Academic Google Scholar Journal of Mammalogy, Volume 46, Issue 2, 20 May 1965, Page 357, https://doi.org/10.2307/1377881 Published: 20 May 1965

The Biology of the Laboratory Rabbit

1974-01-01

Steven H. Weisbroth , Ronald E. Flatt , Alan L. Kraus

The biology and medicine of rabbits and rodents

1989-11-01

David J. Whittaker

A Radio-Tracking System for Wild Animals

1963-01-01

William W. Cochran , Rexford D. Lord

This system of radio location has been used on rabbits (Sylvilagus floridanus), striped skunks (Mephitis mephitis), and raccoons (Procyon lotor). Size, weight, life, physical and electrical stability, and radiated power … This system of radio location has been used on rabbits (Sylvilagus floridanus), striped skunks (Mephitis mephitis), and raccoons (Procyon lotor). Size, weight, life, physical and electrical stability, and radiated power are important parameters of the transmitter. Mercury cells provide about 115 milli- watt hours per gram and were chosen as the transmitter power source. The transmitter is a transistor, crystal-controlled oscillator with the tank coil for the oscillator acting also as a magnetic dipole trans- mitting antenna. Antenna efficiencies of the order of 0.1 percent are obtained, yielding radiated power in the sub-microwatt region. The antenna is constructed of copper or aluminum and has a figure eight directional pattern. The complete transmitter without batteries weighs approximately 10 grams and costs approximately $8.00 for parts. Instructions for building transmitters are given. Transmitters were fastened to rabbits and skunks by means of harnesses and to rabbits, skunks, and raccoons by collars. The harnesses did not prove satisfactory for long-term attachment. The receiver is a portable, battery-powered unit weighing 10 lbs including the batteries. It is crystal controlled on 44 switched channels with a 4 db noise figure and a 30 CPS bandwidth. A re- ceiving system was assembled with commercially available units and used successfully for tracking skunks. The components of this system are a military surplus receiver (BC-453), a radio range filter (FL-13), and two transistorized radio frequency converters. The portable receiver is well adapted for tracking on foot using the null of its attached loop antenna for obtaining bearings on the animals carrying transmitters. The transmitters operate on different frequencies to avoid interference in taking bearings and to provide for individual identification.

A Salt Mixture Supplying the National Research Council Estimates of the Mineral Requirements of the Rat

1966-08-01

F.W. Bernhart , Rudolph M. Tomarelli

Studies on the fertilization of mouse eggs in vitro

1971-01-01

Yutaka Toyoda , Minesuke Yokoyama , TOSIRO HOSI

ICR-JCL系成熟雄マウスの精巣上体尾部から採取した精子をKrebs-Ringer-Bicarbonate液を基本とする培養液内に懸濁させ,5%CO2,95%空気,温度37°Cの条件で3~120分の種々の時間培養した後,体外受精に供した。卵子としてはHCG注射後16~17時間の過排卵卵子を用いた。その結果,体外に培養された精子は雄から採取直後の精子よりも早く卵子に侵入することが明らかとなり,in vitroにおいてマウス精子の受精能獲得が起こることが示唆された。追記: 本報の投稿後に知ったIwAMATSU&CHANGの最近の報告(J.exp.Zool.175,271,1970)によると,1)精巣上体精子は牛の卵胞液の存在下に授精後約1時間から卵子への侵入を開始し侵入率は授精後5時間まで漸増する。2)牛の卵胞液とともに3~4時間体外培養された精子は新鮮精子よりも早く卵子へ侵入する,ことが報じられている。前報の成績17)に比し侵入時期が早くなっているのは技術的な改良によると推察している。ただし,牛の卵胞液を用いずに精子を前処理する試みはなされていない。 ICR-JCL系成熟雄マウスの精巣上体尾部から採取した精子をKrebs-Ringer-Bicarbonate液を基本とする培養液内に懸濁させ,5%CO2,95%空気,温度37°Cの条件で3~120分の種々の時間培養した後,体外受精に供した。卵子としてはHCG注射後16~17時間の過排卵卵子を用いた。その結果,体外に培養された精子は雄から採取直後の精子よりも早く卵子に侵入することが明らかとなり,in vitroにおいてマウス精子の受精能獲得が起こることが示唆された。追記: 本報の投稿後に知ったIwAMATSU&CHANGの最近の報告(J.exp.Zool.175,271,1970)によると,1)精巣上体精子は牛の卵胞液の存在下に授精後約1時間から卵子への侵入を開始し侵入率は授精後5時間まで漸増する。2)牛の卵胞液とともに3~4時間体外培養された精子は新鮮精子よりも早く卵子へ侵入する,ことが報じられている。前報の成績17)に比し侵入時期が早くなっているのは技術的な改良によると推察している。ただし,牛の卵胞液を用いずに精子を前処理する試みはなされていない。

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The Laboratory Rabbit, Guinea Pig, Hamster, and Other Rodents

2012-01-01

Mark A. Suckow , Karla Stevens , Ronald P. Wilson

Immunological Unresponsiveness

1973-01-01

William O. Weigle

Natural concepts in pigeons.

1976-10-01

R. J. Herrnstein , Donald H. Loveland , Cynthia Cable

Haematological Studies of Broilers (1-28 Days) Fed with Diet Containing Varying Proportions of Tithonia Diversifolia Leaf Protein Concentrate

2024-08-20

Ibidiran Oluwasegun Emmanuel , Adebayo Francis Bosede

A feeding trial lasting for 28 days was conducted, involving 150 days old chicks which were randomly allocated to five dietary treatment with 3 replicate, of ten birds per replicate. … A feeding trial lasting for 28 days was conducted, involving 150 days old chicks which were randomly allocated to five dietary treatment with 3 replicate, of ten birds per replicate. The experimental diets consisted of 0%, 5%, 10%,15% and 20% inclusion level of Tithonia Diversifolia (wild sunflower) leaf protein concentrate to determine the effect of different level of Tithonia Diversifolia leaf protein concentrate on Haematological parameters of the birds. Haematological studies carried out were packed cell volume (PCV), Haemoglobin concentration (Hb), Red blood cell (RBC), white blood cells, Alanine aminotransferase (ALT), Aspartate aminotransferase (AST), Mean Corpuscular Haemoglobin Concentration (MCHC), Mean Corpuscular Haemoglobin (MCH), Mean Corpuscular Volume (MCV) and Total protein, Albumin, Cholesterol. Packed Cell Volume obtained for the experimental bird varied significantly to each other with diet 3 having the highest value of 29.7±2.52 which was significantly different (p<0.05) to the value obtained for diet 1, 2 and 5. White blood cells values of 86.33± 185 at 10% level of Tithonia diversifolia leaf protein concentrate was the highest while diet 1 and 2 had the lowest. The highest cholesterol values was obtained from diet 1 and 4 with an average value of 5.37±0.47 and 5.20 respectively while the lowest cholesterol value was obtained from diet 3 which had 4.16 ± 0.33.The highest total protein value of 29.1 ± 0.15 was obtained at 10% inclusion level of Tithonia diversifolia leaf protein concentrate while the lowest values was seen on birds in diet. Feed in take value of birds on diet 3 with 10% inclusion level of Tithonia Diversifolia leaf protein concentrate was 99.8 ± 1.52 which is similar to diet 1 and 5 while the lowest feed intake was observed in birds at diet 2 having 94.1 ± 6.85 the birds on diet 3 (10% inclusion level) showed the highest weight gain followed by birds on the control diets. The result shows that 10% inclusion of Tithonia Diversifolia leaf protein concentrate could be used without having any deleterious effect on the broiler chicks.

Textbook of Rabbit Medicine

2014-01-01

Molly Varga , Frances Harcourt‐Brown

Manual of Exotic Pet Practice

2009-01-01

Mark A. Mitchell , Thomas N. Tully

Integration of screw implants in the rabbit: a 1-year follow-up of removal torque of titanium implants.

1987-01-01

Carina B. Johansson , Tomas Albrektsson

The impact of dietary neem leaf on the growth and biochemical traits of rabbits

2025-06-25

A.H.H. Ali , A.M.G. Adawy , Zeinhom Ismaiel +2 more | Scientific Reports

Abstract Neem is a plant used both as food and in traditional medicine. Its many active components, such as Carotenoids, Saponins, Triterpenoids and Nimbidin, may render it a beneficial feed … Abstract Neem is a plant used both as food and in traditional medicine. Its many active components, such as Carotenoids, Saponins, Triterpenoids and Nimbidin, may render it a beneficial feed additive for rabbits. Healthy weaned rabbits from breed V-line (VL) were selected to examine the effect of neem ( Azadirachta indica ) on growth performance, carcass traits, morphology, and blood parameters responses. Thirty-two V-line rabbits (45 days old) were randomly assigned to four groups ( n = 8 per group): a control group (G1) receiving a basal diet, and three treatment groups (G2, G3, G4) receiving the basal diet supplemented with 5%, 10%, and 15% neem leaf powder, respectively. Neem leaf supplementation had no significant effect on the rabbits’ growth performance, live body weight, carcass weight, lungs and abdominal fat, dressing percentage and liver. There was a significant ( P < 0.05) increase in intestine length in G4. Nevertheless, the cecum considerably shrank ( P < 0.05) in G3 and G4, which might have a more negative impact on growth performance. Certain biochemical measures (albumin, globulin, triglycerides, LDL, total protein, cholesterol, glucose, AST, and ALT) did not exhibit significant variations. However, a significant ( P < 0.01) drop in blood urea occurred after the higher concentration. A significant ( P < 0.05) rise in HDL after neem supplementation. Histologically, the liver showed signs of hepatotoxicity in the group supplemented with neem leaves, such as abnormal hepatocytes’ nuclear membranes, pyknotic nuclei, karyorrhexis and karyolysis. Additionally, the portal and central veins were congested, and a greater number of Kupffer cells were seen. In conclusion, the findings suggest that dietary neem leaf supplementation may have adverse effects on rabbit health and performance, particularly at higher concentrations.

Exploring the Functional Properties of Organ Powders from Corchorus olitorius and Abelmoschus esculentus in Chronic Disease Management

2025-06-23

Assiéné Agamou Julien Armel , William Djeukeu Asongni , Assiéné Oyong Damase Serge +1 more | Biotechnology Journal International

Aims: To determine the functional properties of Abelmoschus esculentus (AE) and Corchorus olitorius (CO) leaf and fruit powders and their relationship with antioxidant activity and essential nutrients. Methodology: Fresh leaves … Aims: To determine the functional properties of Abelmoschus esculentus (AE) and Corchorus olitorius (CO) leaf and fruit powders and their relationship with antioxidant activity and essential nutrients. Methodology: Fresh leaves and fruits of these plants were harvested and processed into powders. Functional properties such as oil absorption capacity (OAC), water absorption capacity (WAC), solubility index (WSI), and porosity were evaluated. Data on nutritional composition and antioxidant activities were obtained from previous studies. Results: It was found that the fruit powders of CO and the leaf powders of AE exhibited the highest mean OAC values of 413.42 ± 2.47 and 342.60 ± 3.04%, respectively. The fruit powders of CO and AE presented high true WAC values of 84.38 ± 0.25 and 81.87 ± 0.31%, high water solubility index (WSI) values of 75.71 ± 1.04 and 66.23 ± 3.76%, and high porosity values of 0.33 ± 0.01 and 0.49 ± 0.01%, respectively. These functional properties of the powders were associated with their antioxidant activity and essential nutrient content. Three distinct powder groups emerged: fruit powders of CO and leaf powders of AE; leaf powders of CO; and fruit powders of AE. These powders exhibited low, moderate, and high antioxidant activity (DPPH, ABTS, FRAP), respectively. The powders in the first group, rich in energy and crude fiber but low in polyphenols, were associated with high OAC values. Those in the second group, rich in essential nutrients and polyphenols, were associated with high WAC and WSI values, while the powders in the third group, rich in minerals and flavonoids, were associated with high WAC, WSI, and porosity values. Conclusion: The fruit powder of AE, followed by the leaf powder of CO, with significant antioxidant activity, appears to be the most suitable for use as dietary supplement powders in the management of chronic diseases.

RELATIONSHIPS AMONG SLAUGHTER WEIGHT, SLAUGHTER AND MEAT QUALITY TRAITS OF FLEMISH GIANT RABBITS

2025-06-23

Michał Kmiecik , Zuzanna Siudak , Agnieszka Otwinowska‐Mindur +1 more | Folia Pomeranae Universitatis Technologiae Stetinensis Agricultura Alimentaria Piscaria et Zootechnica

The purpose of this study was to determine the correlation coefficients among slaughter weight, post-slaughter traits and meat quality traits in the Flemish Giant breed. The study material consisted of … The purpose of this study was to determine the correlation coefficients among slaughter weight, post-slaughter traits and meat quality traits in the Flemish Giant breed. The study material consisted of Flemish Giant rabbits (n = 41; 24 &#9794;, 17 &#9792;). Rabbits were slaughtered at 84 days of age, after 24 h of starvation, with constant access to water. The animals were stunned, bled and skinned, after which the carcasses were eviscerated and subjected to 24 hours of refrigeration at 4°C. The carcasses were then divided into three parts: the front part, the middle part (loin) and the hind part. The study of post-slaughter traits of rabbits took into account: hot and cold carcass weight, weight of the fore part, middle part and hind part, and hot and cold dressing out percentage. After slaughter, samples of longissimus lumborum muscle were cut from the right half-carcass, which were used to determine chemical composition, shear force and profile texture analysis. All calculations were performed with the SAS package (2014). The effect of sex on postslaughter and meat quality traits were analysed using t-Student test (PROC TTEST). In this study, for all analysed traits there were no significant differences (p > 0.05) between sexes. The PROC MEANS were used to compute descriptive statistics for all analysed traits, and PROC CORR were used to calculate the Pearson’s correlation coefficients between each pair of analysed traits. The results indicate a low, or negative, correlation between slaughter performance traits and rabbit meat quality

EFFECT OF PROBIOTICS ADDED MOLASSES IN FEED ON GROWTH AND SURVIVAL OF MILKFISH (Chanos chanos)

2025-06-20

Fahad Bin Muhammad Nur Wakka , Ilmiah Ilmiah , Andi Hamdillah | Jurnal Perikanan Unram

Chanos chanos is classified as a type of cultured fish with great economic value because it plays an important role in meeting the nutritional needs of the community and contributes … Chanos chanos is classified as a type of cultured fish with great economic value because it plays an important role in meeting the nutritional needs of the community and contributes in improving the welfare of life. Giving probiotics is one way that can be used to overcome environmental pollution. Probiotics themselves are living microorganisms that function to maintain the stability of the digestive system in the intestine. Molasses acts as a source of nutrients for probiotic bacteria and is expected to support the increase in the effectiveness of its population as bioremediation agents can be more optimal. This study aims to evaluate the effect of the addition of probiotics combined with molasses in feed on the growth and survival rate of milkfish (Chanos chanos). This research was conducted from October 10 to December 7, 2024 at Tadang Palie, Kec. Cempa. Pinrang Regency, South Sulawesi with a duration of 60 days. This research was conducted using a completely randomized design (CRD), which involved four different treatments and each treatment was repeated three times. The results showed that the effect of probiotics added to molasses in feed had a significant effect on the growth of absolute weight, specific, absolute length of milkfish. For absolute weight growth, the highest value was in treatment B (7.42 grams), the highest value of specific weight was in treatment B (9.86), the highest value of absolute length was in treatment B (9.4 cm), while survival and FCR had no significant effect on milkfish. The highest survival rate was found in treatment A (87%), and the best FCR value in treatment B (3.08).

Effect of Freezing for up to 120 Days on the Physicochemical Characteristics of Hamburgers Made from Botucatu Rabbit Does Slaughtered at Different Ages

2025-06-19

Erick Alonso Villegas-Cayllahua , Daniel Rodrigues Dutra , Ana Verônica Lino Dias +3 more | Animals

This study evaluated the effect of freezing for up to 120 days on the physicochemical and technological properties of hamburgers made from Botucatu rabbit does slaughtered at 3, 12, and … This study evaluated the effect of freezing for up to 120 days on the physicochemical and technological properties of hamburgers made from Botucatu rabbit does slaughtered at 3, 12, and 24 months of age. The parameters were evaluated as follows: surface color (L*, a*, b*), pH using an insertion pH meter, cooking loss using a grill, storage loss based on weight differences, shear force in cooked samples using a texture analyzer, shrinkage percentage, chemical composition (moisture, protein, lipids, and ash), and lipid oxidation, determined by measuring the concentration of malondialdehyde in the burgers at different storage intervals (0, 60, and 120 days) under freezing conditions (-18 °C). The results indicated that increased storage time and animal age reduced tenderness and increased lipid content (p < 0.05). Burgers made from younger does showed higher levels of lipid oxidation. Age also influenced color (greater redness and lower lightness in older animals) and chemical composition, with older does producing burgers with higher protein and lower moisture and mineral content. However, all samples remained within the limits established by Brazilian legislation. This study recommends using meat from does of different ages for hamburger production, as all variations met the required legal standards.

Yield, Polyphenol and Carotenoid Content, and Mycotoxin Occurrence in Grains of Four Winter Barley Varieties Grown in Different Nitrogen Fertilization Conditions in Poland

2025-06-19

Renata Kazimierczak , Dominika Średnicka-Tober , Klaudia Kopczyńska +7 more | Applied Sciences

Barley has consistently been ranked among the four most grown cereals in the world. Integrated agronomic approaches, combining a selection of optimal genotypes and growing conditions, may help to provide … Barley has consistently been ranked among the four most grown cereals in the world. Integrated agronomic approaches, combining a selection of optimal genotypes and growing conditions, may help to provide high yields of quality and safe barley grains. This study aimed to assess the yield, polyphenol and carotenoid content, and mycotoxin presence in grains of four winter barley varieties—Hobbit, Zoom, Galation, and Sandra—grown under different nitrogen (N) fertilization levels. High-performance liquid chromatography (HPLC) was used to analyze bioactive compounds, while liquid chromatography tandem mass spectrometry (LC-MS/MS) was applied to determine mycotoxin occurrence. Results showed that Hobbit and Zoom had higher yields, with Hobbit benefiting from higher N fertilization levels. While no significant differences in phenolic acids (sum) were observed among the barley varieties tested (av. 80.50 ± 6.78 mg/100 g), higher N levels raised flavonoid content (46.78 ± 4.35 vs. 38.82 ± 3.54 mg/100 g). Zoom was characterized by the highest total polyphenol levels (130.45 ± 12.50 mg/100 g). Among the 14 mycotoxins tested, only two were frequently found in the grain samples (DON and 15-Ac-DON), with Sandra being the least and Galation the most susceptible. The N fertilization doses did not significantly impact mycotoxin levels in grains. The insights gained from this study can inform the development and selection of barley varieties and growing conditions that offer optimized yields, enhanced nutritional value, and reduced susceptibility to mycotoxin contamination, tailored to the producers’ and consumers’ expectations and to sustainable farming goals.

Influence of Dietary Alpha-Tocopheryl Acetate (Vitamin E) and Animal Fat on the Chemical Composition, Fatty Acid Profile, Lipid Stability and Sensory Traits of Fresh and Stored Hamburgers from Rabbit Meat

2025-06-19

Bianca Palumbo , María Elena Cossú , Antonella Dalle Zotte | Animals

Improving the proportion of polyunsaturated fatty acids (PUFAs) in meat enhances its nutritional value; however, because PUFAs are prone to oxidation, incorporating antioxidants into animal diets may be an effective … Improving the proportion of polyunsaturated fatty acids (PUFAs) in meat enhances its nutritional value; however, because PUFAs are prone to oxidation, incorporating antioxidants into animal diets may be an effective way to limit lipid degradation. This study investigated the effects of dietary fat content, vitamin E supplementation, and storage time on the oxidative stability, physico-chemical, sensory, and technological traits of rabbit hamburgers. Seventy-two rabbits (aged 40-78 days) were assigned to four groups: F0-E0 (0% pork fat, 0 mg/kg vitamin E), F0-E200 (0% fat, 200 mg/kg vitamin E), F2-E0 (2% fat, 0 mg/kg vitamin E), and F2-E200 (2% fat, 200 mg/kg vitamin E). After slaughter and carcass deboning, fat-free meat was processed into hamburgers. Three hamburgers per rabbit were analyzed immediately (T0) and three after 7 days of storage at 4 °C (T7). Vitamin E supplementation significantly reduced TBARS values (p < 0.001) and improved meat appearance and texture. Fat-enriched diets modified the fatty acid profile, increasing unsaturated and n-3 fatty acids, and enhanced meat flavor. Vitamin E supplementation improved the nutritional quality of the lipids by increasing PUFAs and n-3 FA levels. Storage time significantly affected quality traits, with T7 hamburgers showing higher TBARS values (p < 0.001) and a greater UFA percentage.

EFFECT OF TWO STUNNING METHODS ON WELFARE INDICATORS AND CARCASS LESIONS IN CALIFORNIA RABBITS

2025-06-19

Yamileth Jerónimo-Romero , José G. Herrera‐Haro , María Esther Ortega-Cerrilla +2 more | Agrociencia

Consumers have legitimate concerns about the application of animal welfare procedures during the slaughter of rabbits. However, there is insufficient evaluation of such practices, particularly in small-scale rabbit-breeding operations in … Consumers have legitimate concerns about the application of animal welfare procedures during the slaughter of rabbits. However, there is insufficient evaluation of such practices, particularly in small-scale rabbit-breeding operations in Mexico. This study aimed to assess animal welfare indicators during slaughter under different stunning methods. A total of 120 California rabbits (Oryctolagus cuniculus L.) were used, each one of which weighed 2 kg, and were distributed into four treatments in a 22 factorial arrangement to relate two methods of stunning (a1 = concussion, a2 = electronarcosis) and the sex of the animal (b1 = male, b2 = female) with the behaviors observed during slaughtering and the lesions in the carcass as factors that affect the animal’s welfare. Management indicators (number and precision of the application), behavioral indicators (attempts at escaping, kicking, vocalization, gaping, and arching of the back), and lesions in the carcass were registered. Descriptive statistics were obtained, and the behaviors were compared using nonparametric tests. Additionally, risk factors were identified in the carcass related to the slaughter methods, weight, and sex. During stunning, precision and kicking were different (p < 0.05), unlike vocalization (p = 0.7). During the slitting of the throat, time (p = 0.4), vocalization (p = 0.6), blinking (p = 0.7), corneal reflex (p = 0.8), and dilated pupils (p = 0.2) presented no differences between methods. However, there were differences in kicking (p < 0.01), gaping (p < 0.01), and arching of the back (p < 0.01). In the post-mortem evaluation of lesions, the carcasses that displayed the lowest number of lesions, with the smallest size and located on the legs, were from rabbits on which the method of electronarcosis (p < 0.001) was applied. The slaughtering method was a risk factor in the appearance of bruises (p > 0.0003). The method of electronarcosis was concluded to be more effective than concussion to induce the animal to lose consciousness during the slaughtering of rabbits.

The Effects of Solid-State Fermentation by Aspergillus spp. on the Nutritional Profile of Selected Agro-Industrial by-Products as Potential Feedstuffs for Weaner Rabbits

2025-06-19

Adedoyin Titi Amos , D. U. Kareem , Tolulope Adeleye +7 more | Fermentation

This study evaluates the effects of solid-state fermentation inoculated with Aspergillus spp. on the nutritional profile of selected agro-industrial by-products (AIBPs: cowpea shell, groundnut shell, soybean hull, and maize shaft). … This study evaluates the effects of solid-state fermentation inoculated with Aspergillus spp. on the nutritional profile of selected agro-industrial by-products (AIBPs: cowpea shell, groundnut shell, soybean hull, and maize shaft). These AIBPs were assessed as potential feedstuffs in weaner rabbit diets, which often exhibit digestive disorders when introduced to highly lignified feed ingredients. The AIBPs were milled to a particle size of 2 mm, sterilized, and subjected to fermentation with Aspergillus spp. under microaerophilic conditions at 28 ± 2 °C for 10 days. Samples (four replicates per treatment) were analyzed for chemical constituents (mineral and proximate composition, anti-nutritional factors, and fibre fractions) before and after fermentation. Digestible energy and digestibility coefficient of gross energy were calculated. Data were subjected to two-way analysis of variance (ANOVA). There was an increase (p < 0.05) in mineral profile, proximate composition, digestible energy, digestibility coefficient of gross energy, and dry matter, with a reduction (p < 0.05) in crude fibre, fibre fractions, and anti-nutritional factors. It was concluded that fermentation with Aspergillus spp. improved the nutritional value of the selected agro-industrial by-products. Therefore, fermented materials possess a better nutritional profile to be used in feeding programs for weaner rabbits. This will ensure sustainable animal production and add value to agricultural waste, which would otherwise constitute an environmental nuisance.

Correction: Qin et al. Dietary Fermented Blueberry Pomace Supplementation Improves Small Intestinal Barrier Function and Modulates Cecal Microbiota in Aged Laying Hens. Animals 2024, 14, 2786

2025-06-18

Binghua Qin , Zhihua Li , Qian Zhu +5 more | Animals

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Mineral composition of toasted bambara nut sievate-yam peel meal composite: Impact on dietary replacement levels of maize on carcass traits and bone morphometry of noilers

2025-06-18

O. Uza , A. E. Onyimonyi , B.M. Gege +3 more | Deleted Journal

One hundred and eighty 14-day-old noiler chicks of average body weight range of 187-190 g were used in a 16-week feeding trial to assess the effects of toasted bambara nut … One hundred and eighty 14-day-old noiler chicks of average body weight range of 187-190 g were used in a 16-week feeding trial to assess the effects of toasted bambara nut sievate-yam peel meal composite (TBNS-YPMC) mineral content and impact on carcass traits and bone morphometry. Birds were divided in two groups of 90 individuals. Each group was sub-divided in three sub-groups of 30 birds and replicated thrice with 10 birds. The experiment was a 2 × 3 factorial arrangement. The first group was offered diets: T1, 0; T2, 20; and T3, 40% of TBNS-YPMC replacing maize, respectively without Lactic Dry® (LD). The second group received the same diets with LD. Results showed that TBNS-YPMC had good mineral content: phosphorus, calcium for the second group. Birds fed 20% TBNS-YPMC and diets with LD had performed with 2.23 ± 0.11 kg de-feathered weight. Eviscerated (1.95 ± 0.10 kg) and carcass weights (1.80 ± 0.08 kg) were performed for bird fed control diet without LD and 20% TBNS-YPMC with or without LD. Birds fed 40% TBNS-YPMC without LD and the control diet with LD had improved (4.25 ± 0.14 ppm) in calcium. Phosphorus was improved (2.23 ± 0.03 ppm) in birds fed 40% TBNS-YPMC without LD and diets containing 0 and 40% TBNS-YPMC with LD. All birds had improved magnesium, zinc, and iron except those fed control diet without LD. It was concluded that TBNS-YPMC contains calcium, phosphorus, magnesium, iron, zinc, potassium and manganese. The study recommends 40% TBNS-YPMC replacement for maize in noiler diets with LD to improve de-feathered, eviscerated, carcass weight and bone mineral contents.

Long‐term immunosuppression of rabbits through oral tacrolimus administration

2025-06-17

Alexane Thibodeau , Todd Galbraith , Oumayma Hayouni +2 more | Animal Models and Experimental Medicine

Abstract Background The absence of well‐established immunosuppressed rabbit models poses a significant hurdle in xenograft experiments. Tacrolimus has been identified as a highly promising immunosuppressive agent for rabbits. However, determining … Abstract Background The absence of well‐established immunosuppressed rabbit models poses a significant hurdle in xenograft experiments. Tacrolimus has been identified as a highly promising immunosuppressive agent for rabbits. However, determining the optimal dosage and route of administration to minimize toxicity while maintaining efficacy remains challenging. Methods In this study, we investigated the effect of orally administered tacrolimus in rabbits, with an aim to achieve a whole blood target trough level of 3–10 ng/mL, and looked at signs of tissue rejection after the transplantation of a human nerve conduit to repair a severed fibular nerve. An oral dosage range of 0.25–1.5 mg/kg/d was studied for up to 1 year in 63 New Zealand rabbits. Results We demonstrated the feasibility of long‐term grafting in rabbits while maintaining safe immunosuppression, with side effects mainly limited to diarrhea. Customizing the administered dose proved crucial for graft efficacy and low toxicity, which translated into 100% individual survival. We suggest an oral tacrolimus dose of 1.0–1.5 mg/kg depending on individual heterogeneity and recommend to implement a close therapeutic drug monitoring in the rabbits to maintain a whole blood tacrolimus trough level within the range of 5–12 ng/mL, as levels below 5 ng/mL showed signs of inflammation in the graft. Conclusion The oral administration of tacrolimus enabled efficient immunosuppression of rabbits over a 1‐year period without significant side effects or loss of animals.

Stress and the City: Body Condition, Blood Parameters, Parasite Load, and Stomach Calorimetry of Rural and Urban European Rabbit Populations

2025-06-16

Madlen Fellmeth , Denise Babitsch , Anne Madel +6 more | Wild

(1) Background: We combined physiological and morphological data of the European rabbit (Oryctolagus cuniculus) to provide insights into the question of how urbanization affects the health of urban wildlife populations. … (1) Background: We combined physiological and morphological data of the European rabbit (Oryctolagus cuniculus) to provide insights into the question of how urbanization affects the health of urban wildlife populations. (2) Methods: We dissected 39 urban and 34 rural wild rabbits in order to compare organ weights, as well as stomach contents. Furthermore, we collected blood and fecal samples. (3) Results: Rural rabbits had a significantly longer body and a higher body weight as well as more fat tissue around their kidneys compared to urban rabbits. In contrast, the stomach, the intestines, the liver, the lung, and the brain of urban rabbits were significantly heavier. The amount of hematocrit, hemoglobin, and the mean corpuscular volume was significantly higher in urban rabbits. The caloric energy content of the stomach was comparable between rural and urban rabbits and was merely influenced by the season being higher in autumn. Rural rabbits had an overall higher mean parasite index compared to urban rabbits. (4) Conclusions: The results of our study allow for a deeper understanding of how density-dependent (e.g., transmission of diseases) and density-independent factors (e.g., food quality) influence the health status and life history traits of urban wildlife populations compared to their rural counterparts.

Carcass Traits and Serum Mineral Profile of Finisher Broilers Fed a Phytogenic-Based Diet

2025-06-16

A.D. Olabode , Nduka Christiana , Azodo Lilian Nonye +1 more | Current Research in Poultry Science

Assessment of the Fertilizing Properties of Rabbit Urine Combined with Cattle Manure on the Growth and Yield of Maize

2025-06-14

Philbert Mbonayo , Lambert Niyoyitungiye , Fabrice Kana +1 more | Asian Journal of Research in Agriculture and Forestry

The objective of this study is to evaluate the fertilizing properties of rabbit urine combined with cattle manure on the growth and yield of maize. The study was conducted between … The objective of this study is to evaluate the fertilizing properties of rabbit urine combined with cattle manure on the growth and yield of maize. The study was conducted between January and June 2024, in a real-world setting located in the natural region of Buyogoma, within the central plateaus agro-ecological zone, at the Provincial Office of Environment, Agriculture, and Livestock of Cankuzo in Burundi. The study was carried out using a randomized complete block experimental design. Five randomized treatments were used: a control without fertilizer (T0), cattle manure alone (T1), cattle manure combined with rabbit urine diluted 5 times (T2), cattle manure with rabbit urine diluted 2 times (T3), and cattle manure with undiluted rabbit urine (T4). The collected and analyzed data included maize plant growth parameters (number of leaves, plant height, and number of ears) and dry grain yield. The results showed that treatment T3, using urine diluted twice, recorded the highest number of leaves with 10.42±0.64, and significantly greater plant heights of 38.36±0.949 cm, 126.39±24.606 cm, and 191.250±8.290 cm at 4, 8, and 13 weeks after sowing, respectively. Similarly, the highest average number of ears, 1.67±0.476, was also produced under treatment T3, which included urine diluted twice in addition to cattle manure. The highest average dry grain yield was also observed under treatment T3, closely followed by treatment T4, with yields of 4.066±0.055 t/ha and 4.032±0.074 t/ha respectively, both significantly higher than the other treatments. In contrast, the control treatment (T0), which received no fertilizer, recorded the lowest yield at 0.128±0.003 t/ha. This study therefore highlights the positive effect of using rabbit urine as a liquid fertilizer combined with cattle manure, contributing to improved growth and yield of maize.

Effect of bovine rumen content meal on growth, carcass, and gut parameters in rabbits

2025-06-13

Abdullahi Isah , Mohammed Audu , Elina Christoper Bitrus +3 more | International Journal of Science and Research Archive

The rising cost and competition for conventional feedstuffs between humans and livestock necessitate the exploration of non-conventional alternatives to improve economic efficiency in animal feeding. This study evaluated the use … The rising cost and competition for conventional feedstuffs between humans and livestock necessitate the exploration of non-conventional alternatives to improve economic efficiency in animal feeding. This study evaluated the use of bovine rumen content (BRC) as a feed ingredient in rabbit diets. A total of 36 weaned crossbred rabbits, aged five weeks, were randomly assigned to four dietary treatments (T1–T4) with 0%, 20%, 30%, and 40% BRC inclusion levels, respectively. Each treatment had three replicates in a completely randomized design. The experiment assessed growth performance, carcass traits, and gut characteristics. Results showed that daily feed intake increased significantly (P < 0.001) with higher BRC levels, indicating improved palatability or nutrient drive. However, weight gain and feed conversion ratio were not significantly affected (P > 0.05), suggesting that BRC inclusion did not negatively impact growth efficiency. Significant differences (P < 0.001) were observed in live weight, carcass weight, and dressing percentage, with higher values recorded at increased BRC levels. Among the carcass components, thigh, skin, head, loin, rack, and shoulder weights varied significantly across treatments. Internal organ weights revealed significant differences (P < 0.001) in kidney weight and large intestine length, while lung weight also differed (P < 0.05). No significant differences were found in small intestine length, abdominal fat, heart, liver, tail, or feet weights. Importantly, no mortality was recorded during the trial. In conclusion, BRC can be included in rabbit diets up to 40% without adverse effects on performance or carcass characteristics, making it a promising alternative feed resource. Further research is recommended to explore other rumen content sources for broader application in rabbit nutrition.

Feeding Broilers with Reduced Dietary Crude Protein or Reduced Soybean Meal Diets Has No Negative Impact on the Performance and Carcass Traits While Reducing the Feed Global Warming Potential

2025-06-13

Bart Matton , Adriaan Verhelle , Lise Vlerick +2 more | Animals

One way to reduce the environmental impact of the European poultry industry is to feed birds with low crude protein (CP) or low soybean meal (SBM) diets, leading to less … One way to reduce the environmental impact of the European poultry industry is to feed birds with low crude protein (CP) or low soybean meal (SBM) diets, leading to less SBM import. In this paper, the objective was to examine if low CP and a feed limitation of SBM could be applied to reduce the global warming potential (GWP) of feed without a negative impact of the performance and slaughter parameters. Male Ross 308 birds (n = 1350) were divided between six treatments in a completely randomized design. In a three-phase feeding system, the dietary CP was reduced either only in the finisher phase (from 19% to 17% CP), in the grower phase (from 20% to 19% CP) and finisher phase, or in the starter (from 21% to 20% CP), grower, and finisher phases. In two additional groups, SBM inclusion in feed was reduced in each life phase either to a maximum of 15% SBM (low) or 0% SBM (zero) compared to a positive control (PC) group based on Aviagen 2019 recommendations, modified to 112% for standardized ileal digestibility (SID) arginine (Arg) to lysine (Lys) and 38% for SID histidine (His) to Lys. Data were analyzed with R (Version 4.2.0) using linear regression models. Opteinics™ (Chemovator, Mannheim, Germany) was used to calculate feed GWP. Means were compared with multiple comparisons corrected with Tukey’s test. Low CP diets had no negative effect on performance, carcass weight, and breast meat weight compared to the PC irrespective of the phase in which CP reduction was initiated. Both zero and low SBM groups had superior body weight (p < 0.05), weight gain (p < 0.05), and FCR (p < 0.05) compared to PC at d35. The low and zero SBM groups had higher carcass weight (p < 0.05) and breast meat weight (p < 0.05) compared to the PC. Both low CP and limiting SBM inclusion in feed positively improved the feed GWP compared to the PC. In conclusion, low CP diets can be applied in broilers during a 35 d growth period or specific phases thereof, with no negative impacts on performance parameters. Low and zero SBM-based diets showed superior performance and carcass weight in comparison to a conventional SBM-driven diet. Both strategies can be used to reduce the GWP of feed.

Effect of nanomicelles of Thymus vulgaris, Carum copticum, Mentha longifolia, and Lavandula angustifolia essential oils on the performance and health status of suckling calves

2025-06-13

Mojtaba Alipour- Ainuddin , Jamal Seıfdavatı , Hossein Abdi‐Benemar +1 more | Ankara Üniversitesi Veteriner Fakültesi Dergisi

This study investigated the effects of nanomicelles of four essential oils on functional and antioxidant parameters of 48 male Holstein newborn calves. The calves were assigned to six groups and … This study investigated the effects of nanomicelles of four essential oils on functional and antioxidant parameters of 48 male Holstein newborn calves. The calves were assigned to six groups and monitored over a 46-day period. The groups included one control group and five treatment groups, each receiving 400 mg of a specific nanomicellized essential oil (NEO) – Thymus vulgaris (TNEO), Carum copticum (CNEO), Mentha longifolia (MNEO), Lavandula angustifolia (LNEO) – or a blend of all four (BNEO), administered daily via 8 ml of milk emulsion. No significant differences in average daily weight gain (ADG) were observed among the groups during days 0-14 and 14-32. However, during days 32-46, calves supplemented with TNEO and LNEO showed significantly higher ADG (P=0.004). Calves receiving LNEO exhibited significantly higher blood concentrations of total protein (P=0.022) and albumin (P=0.046) compared to both the control and other treatment groups. Alanine aminotransferase (ALT) levels were lower in the TNEO, LNEO, MNEO, and BNEO groups compared to the control (P=0.012). Blood glutathione peroxidase (GPx) (P=0.009) and superoxide dismutase (SOD) (P=0.001) activities were elevated in the TNEO and BNEO groups. Malondialdehyde (MDA) concentrations were reduced in all NEO-supplemented groups, with the lowest levels observed in the TNEO group (P=0.009). Although the control group exhibited the lowest total antioxidant capacity (TAC), no significant differences were detected among the NEO-treated groups. Overall, these findings suggest that nanomicellized essential oils of Lavandula angustifolia and Thymus vulgaris confer the most notable benefits to suckling calves, enhancing weight gain, feed consumption, blood parameters, and oxidative stress markers.

Potential role of plant-derived thymol and carvacrol against Newcastle disease virus in poultry

2025-06-13

Arslan Muhammad Ali Khan , Silla Ambrose , Rao Zahid Abbas | Archives of Microbiology

The Effects of Pretreated and Fermented Corn Stalks on Growth Performance, Nutrient Digestion, Intestinal Structure and Function, and Immune Function in New Zealand Rabbits

2025-06-12

Xuying Jia , Yaohao Dun , Guangming Xiang +5 more | Animals

This study investigates the efficacy of fermented corn straw as a viable corn substitute in rabbit diets, evaluating its impact on growth performance, intestinal health, cecal microbiota, and metabolite profiles … This study investigates the efficacy of fermented corn straw as a viable corn substitute in rabbit diets, evaluating its impact on growth performance, intestinal health, cecal microbiota, and metabolite profiles to determine its potential for addressing corn shortages in animal husbandry. Over 35 days, 120 New Zealand rabbits were assigned to four treatments: (i) 12% corn (C100), (ii) 6% corn + 6% fermented straw (FS50), (iii) 12% fermented straw (FS100), and (iv) 6% corn + 6% dry straw (DS50). Fermented straw enhanced the rabbits’ average daily feed intake (ADI) and average daily gain (ADG) and elevated cecal cellulase activity. It also downregulated TLR4 in the jejunum mucosa, upregulated MUC2 in the ileum mucosa, strengthened the intestinal barrier, and reduced the diarrhea index and incidence in weaned rabbits. Specific microbial families influenced amino acid and phospholipid concentrations, altering the cecal metabolic environment. In summary, replacing corn with fermented corn straw in rabbit diets significantly boosts ADG and ADI, potentially lowers the feed-to-gain ratio, and enhances cecal microbiota and metabolite profiles without compromising growth performance.

A Comparison of Laying Performance and Egg Characteristics of Nigerian Indigenous and Commercial Hens

2025-06-12

Ugwumba Chijioke Isaac , Favour Chinaecherem Udechukwu , Ogechukwu Marygrace Edeh +4 more | Insights in animal science

This study evaluated the laying performance and egg characteristics of 36 hens over a four-week period, comprising 12 hens each of the naked neck (Na), normal feathered (N), and Isa … This study evaluated the laying performance and egg characteristics of 36 hens over a four-week period, comprising 12 hens each of the naked neck (Na), normal feathered (N), and Isa Brown (IB) strains, which laid 46, 58, and 34 eggs, respectively. One-way ANOVA revealed that Na and N hens consumed significantly (p ≤ 0.05) less feed (1586.11 ± 62.75 g). Notably, N hens exhibited superior feed efficiency for egg mass (24.29 ± 5.30), a higher egg number to 28 days (5.50 ± 0.58), and greater hen-day production (19.05 ± 2.19%). Conversely, IB and Na hens produced eggs with significantly (p ≤ 0.05) better quality traits. Although total egg protein content was similarly high in the indigenous hens (Na and N) compared to IB, eggs from N hens contained significantly (p ≤ 0.05) higher magnesium levels. Furthermore, eggs from indigenous hens were rated significantly better in terms of mouthfeel than those from IB hens. Overall, the indigenous chickens, particularly the N strain, demonstrated superior performance for most of the evaluated parameters, indicating their potential for enhancing laying performance and egg quality in poultry production.

Development and sensory evaluation of rabbit meat marinade formulations with additive reduction: physicochemical and textural properties

2025-06-12

Victoria Guadalupe Aguilar Raymundo , Jahir Antonio Barajas‐Ramírez | Agro Productividad

Objective: The study evaluated the effect of different levels of liquid marination and phosphate on several physicochemical and textural parameters, product preference, and sensory characteristics of rabbit meat during storage. … Objective: The study evaluated the effect of different levels of liquid marination and phosphate on several physicochemical and textural parameters, product preference, and sensory characteristics of rabbit meat during storage. Methodology: Six formulations of rabbit meat were tested over storage periods of 1, 8, and 15 days, during which evaluation physicochemical properties were analyzed. Results: The physicochemical parameters included pH (6.0 – 6.6), acidity (0.35 – 0.65%), and texture (hardness, 1.85 – 3.23 N). Sensory evaluation was conducted to assess characteristics of roasted rabbit meat, such as white appearance and raw texture, among other attributes. The results revealed significant differences (p<0.05) among formulations in physicochemical properties, particularly in texture and acidity. Sensory characteristics were generally similar, except for white appearance (p<0.01) and raw texture (p<0.05). Limitations: The study was limited to assessing only three periods of storage (1, 8 and 15 days), which may not reflect the long-term effects of marinated rabbit meat. Conclusions: This study demonstrates the feasibility of producing marinated rabbit meat with reduced additive content, effectively lowering production costs while maintaining quality and sensory attributes.

Adding dandelion to rabbit diets: enhancing the growth performance and meat quality by altering immune competence and gut microbiota

2025-06-12

Xiaohua Yi , Xiaoqin Tang , Yuan Sui +3 more | Microbiology Spectrum

ABSTRACT Healthy meat quality is an important guarantee for food safety. This study evaluated the addition of dandelion meal to the diet to investigate its effects on growth performance, carcass … ABSTRACT Healthy meat quality is an important guarantee for food safety. This study evaluated the addition of dandelion meal to the diet to investigate its effects on growth performance, carcass traits, antioxidant capacity, immune performance, and intestinal flora of Hycole meat rabbits. In the experiment, we assessed changes in meat quality, immune markers, and gut flora in rabbits by ELISA, serological assays, and 16S rRNA sequencing. The results showed that the addition of 1.5% and 2% dandelion to the diet significantly increased the daily weight gain of meat rabbits and reduced the feed-to-weight ratio ( P < 0.05); the drip loss of the 1.5% dandelion group was significantly lower than that of the control group ( P < 0.05); the addition of dandelion to the diet significantly reduced the content of MDA ( P < 0.05), and had no significant effect on the blood indexes ( P > 0.05), and the addition of 2% dandelion significantly reduced the content of gut flora ( P > 0.05). The addition of 2% dandelion significantly decreased serum SOD content ( P < 0.05); IgA, IgG, and IgM in the serum of meat rabbits were significantly increased by the addition of dandelion to the diet ( P < 0.05); moreover, the analysis of the intestinal flora showed that the bacterial abundance of the group with the addition of 0.5% dandelion was the highest and significantly higher than that of the other groups ( P < 0.05). This study provides a theoretical reference for exploring the application of Chinese herbal medicine in rabbit breeding. It provides significant value for improving the quality of rabbit meat, reducing the use of antibiotics, and providing healthy meat products for humans. IMPORTANCE This study provides a theoretical reference for exploring the application of Chinese herbal medicine in rabbit breeding. It provides significant value for improving the quality of rabbit meat, reducing the use of antibiotics, and providing healthy meat products for humans.

Successional Use of Saguaro (Carnegiea gigantea1) Fruit by Coyote (Canis latrans2) and Desert Fire Ants (Solenopsis xyloni3)

2025-06-12

Robert B. Pape | Southwestern Entomologist

Ectoparasites of Wild Rats (Rattus spp.) in Banyuwangi: Prevalance, Diversity, and Potential Risks

2025-06-11

A Tanjung , April Hari Wardhana , Aditya Yudhana +6 more | Journal of Basic Medical Veterinary

This study aimed to determine the prevalence of ectoparasite infestation and all types of ectoparasites that infest wild rats (Rattus spp.) from three villages in Banyuwangi Subdistrict, namely Lateng Village, … This study aimed to determine the prevalence of ectoparasite infestation and all types of ectoparasites that infest wild rats (Rattus spp.) from three villages in Banyuwangi Subdistrict, namely Lateng Village, Kampung Mandar Village, and Kepatihan Village. A total of 100 wild rats of the species Rattus norvegicus and Rattus tanezumi were collected from Lateng Village, Kampung Mandar Village, and Kepatihan Village. Samples were anaesthetised based on the standard operational procedure of ethical testing and combed to obtain ectoparasites that predilect on the surface of the rat body. Ectoparasites were identified using the whole mount method natively with 10% KOH fixation, dehydration, and clearing to see the morphology of the ectoparasites.The results showed that the prevalence of ectoparasite infestation was 94% from three villages in Banyuwangi Subdistrict, consisting of 94 fleas, 38 lice, and 1,392 mites. The results of ectoparasite identification obtained five genus namely Xenopsylla, Polyplax, Hoplopleura, Laelaps, Ornithonyssus. Further research is needed to determine the prevalence of infestation and diversity in wild rats (Rattus spp.) in Indonesia.

Biochemical blood parameters in chronic Opisthorchis felineus infection in rabbits in the experiment

2025-06-10

Alevtina A. Sidel'nikova | Russian Journal of Parasitology

The purpose of the research is to analyze biochemical blood parameters in the chronic opisthorchosis stage in long-term infection in a compensation status by the example of the rabbit. Materials … The purpose of the research is to analyze biochemical blood parameters in the chronic opisthorchosis stage in long-term infection in a compensation status by the example of the rabbit. Materials and methods. The experiment compared the control and experimental groups of sexually mature rabbits ( Oryctolagus cuniculus domesticus ), 10 animals each. The rabbits were infected with 50 metacercariae of Opisthorchis felineus S. Rivolta, 1884. Five years after infection, a biochemical analyzer determined glucose, creatinine, urea, blood urea nitrogen to creatinine ratio, total calcium and phosphorus, total protein, albumin, globulin, albumin to globulin ratio, alanine aminotransferase, alkaline phosphatase, gamma-glutamine transferase, bilirubin, and cholesterol in the animals' blood plasma. Results and discussion. The blood plasma in the experimental rabbits was found to have statistically significantly increased urea, the urea nitrogen to creatinine ratio, albumins, and the albumins to globulins ratio versus the control group. Glucose, creatinine, phosphorus, calcium, alkaline phosphatase, and cholesterol were higher in the experimental group. The data were not statistically significant. On the contrary, the amount of globulins, alanine aminotransferase, total protein and total bilirubin was lower versus the control group. The evaluation of bilirubin fractions between the groups found a lower indirect fraction versus the control. The data analysis results developed a diagnostic panel where probable involvement in the pathological process was assessed for the host's organs and systems using the example of O. felineus infection based on the values of biochemical blood parameters. The biochemical blood parameters in the chronic stage of opisthorchosis were normal or deviated slightly in a comprehensive snapshot analysis.

Evaluación productiva de cabritos criollos (Capra hircus) con suplementación de alimento balanceado y forraje verde hidropónico de maíz y el efecto sobre los parámetros orgonométricos

2025-06-05

Nutrition, health and welfare of Norwegian pet guinea pigs

2025-06-05

E.G.A. Olsen , Zsombor Wagenhoffer , Nikoletta Hetényi | Acta Veterinaria Hungarica

Abstract We examined aspects of husbandry, health and welfare of pet guinea pigs ( Cavia porcellus , GP) in Norway. An online questionnaire (with 100 questions) was completed by 284 … Abstract We examined aspects of husbandry, health and welfare of pet guinea pigs ( Cavia porcellus , GP) in Norway. An online questionnaire (with 100 questions) was completed by 284 GP owners. Crossbreeds were the most common (36.6%). Most GPs were between one and four years of age (67.2%). The sex ratio was about 50-50%. Animals were mainly housed indoors (64.1%) and only nine GPs had less space than 0.72 m 2 . The incidence of stereotypic or negative behaviours was low. Nearly all GPs (93.3%) had ad libitum access to hay. Complete extruded or pelleted feeds were most commonly fed (80.6%). Almost 60% of the participants reported that their GP is fed fresh vegetables daily which may explain why 63.7% of the respondents never fed vitamin C supplements. Ectoparasites (21.1%) were the most prevalent health problems, followed by coughing and/or sneezing (19.7%), abscesses (12.7%), and overgrown nails (11.6%). The only significant associations were that GPs over 3 years had more than two simultaneous health problems ( P < 0.005). Ovarian cysts were also more frequent among these animals ( P < 0.005). The most commonly utilized source of husbandry information was the internet (80.3%).

Effect of feeding rabbits solely on Euphobia heterophylla with or without concentrates

2025-06-04

U. E. Okpakpor , Muyiwa Adegbenro , M.L. ADELEKE +1 more | Journal of Agriculture and Food Sciences

Euphorbia heterophylla is a tropical weed of cultivated and waste land which also grows in gardens and often used alongside other plants as feed for rabbits. It has also been … Euphorbia heterophylla is a tropical weed of cultivated and waste land which also grows in gardens and often used alongside other plants as feed for rabbits. It has also been reported that supplication of rabbit feed with Euphorbia heterophylla caused a significant increase in the α-linolenic fatty acid content of meat from the rabbits but there are not enough information on the consequence of feeding rabbits solely on this plant. Such information is essential to guide farmers in the use of this tropical weed widely used by farmers to feed rabbits. Seventy-five Newzeland breed of rabbits were used in this study. The animals were randomly allotted into five treatments with 3 replicates in each treatment. The treatments are as follows; concentrate only (CO), fresh forage only (FFO), dry forage only (DFO), concentrate + fresh forage (CFF) and concentrate + dry forage (CDF). Experimental animals were offered feed and water ad-libitum during the eight weeks study, data on growth performance response were collected. Result of the study showed weight gained for rabbits fed CO, CFF and CDF were statistically similar (p≥0.05) and higher than those of rabbits fed FFO and DFO. For average feed consumed, it is observed that rabbits on FFO recorded the significantly highest (p≤0.05) value while those fed DFO had the significantly (p≤0.05) least value. It was then concluded that feeding rabbits CO and CDF was the most efficient to support weight gained. It is however recommended that the plant be consumed in moderation to avoid compromising the healthy status of rabbits which can cause death.

Inseminación artificial en cobayas (Cavia porcellus) de tercer y cuarto parto aprovechando el celo postparto con semen fresco post-mortem diluido en el Centro Experimental Uyumbicho

2025-06-03

Jhonatan Adrian Monteros Pazmiño , Juan Alberto Vargas-Tipan , Dany Thomás García-Herembás +2 more | 593 Digital Publisher CEIT

La inseminación artificial (IA) es una biotecnología reproductiva utilizada para mejorar la genética y evitar la transmisión de enfermedades en distintas especies animales. Sin embargo, en cobayas (Cavia porcellus) su … La inseminación artificial (IA) es una biotecnología reproductiva utilizada para mejorar la genética y evitar la transmisión de enfermedades en distintas especies animales. Sin embargo, en cobayas (Cavia porcellus) su aplicación es limitada debido a la falta de protocolos estandarizados y la dificultad en la recolección y conservación del semen. Objetivo general: Evaluar la viabilidad de la IA en cobayas de tercer y cuarto parto, utilizando semen fresco diluido post-mortem, aprovechando el celo postparto en el Centro Experimental Uyumbicho. Metodología: Se trabajó con 60 cobayos (40 hembras y 20 machos) distribuidos en dos grupos experimentales según el tiempo de IA: temprana (2-6 horas postparto) y tardía (8-12 horas postparto). Se obtuvo semen mediante extracción epididimal post-mortem, evaluando sus características macroscópicas y microscópicas con el sistema AndroVision®. Posteriormente, se realizó la IA y el diagnóstico de gestación por ecografía a los 45 días. Resultados: La tasa de gestación fue del 90% en la IA temprana y del 65% en la tardía. Se observó que la concentración espermática y la motilidad eran variables, lo que influyó en la eficiencia de la fecundación. Conclusión: La IA en cobayas es viable si se respeta el tiempo óptimo de inseminación, siendo más efectiva en el celo temprano postparto. Sin embargo, es necesario desarrollar protocolos específicos para mejorar la calidad espermática y estandarizar el procedimiento en esta especie.

Agronomic responses of selected improved sorghum (Sorghum bicolor L. Moench) varieties to organic soil amendment with poultry manure in the humid tropics

2025-06-03

Olasupo James Fadeyi , Thomas Oladeji Fabunmi , Victor Olowe +1 more | Research Square (Research Square)

<title>Abstract</title> Sorghum's intrinsic resilience makes it ideal for organic farming, although there is little research on its performance in organic production systems. This study investigated the agronomic performance of three … <title>Abstract</title> Sorghum's intrinsic resilience makes it ideal for organic farming, although there is little research on its performance in organic production systems. This study investigated the agronomic performance of three improved sorghum varieties (SAMSORG 44, SAMSORG 47, and SAMSORG 48) in response to poultry manure application (0, 2.5, and 5.0 t ha⁻¹) at the Certified Organic Research Plots of the Institute of Food Security, Environmental Resources and Agricultural Research (IFSERAR), FUNAAB (June – December, 2023) and the Organic Agriculture Professionals in Tertiary Institutions in Nigeria (OAPTIN), FUNAAB (September – November, 2024). The experiments were laid out in randomized complete block design with three replications. Results revealed that manure application had no significant (p < 0.05) effect on days to 50% flowering, 100% flowering, and maturity in both years although there was significant (p < 0.05) varietal effect on them. SAMSORG 44 exhibited the earliest flowering and the shortest time to maturity. Plant height, dry matter accumulation, panicle weight, seed weight per plot, threshing percentage, biomass and seed yields were significantly (p<0.05) increased with manure application. Significant (p < 0.05) interactions between manure and variety indicated shortest time to maturity and highest seed yields of 2748.4 kg/ha and 2599.1 kg/ha, both years respectively at 5.0 t ha−1 manure application particularly for SAMSORG 44 which are significantly higher than the average yield values in Africa (924.8 kg/ha) and the world (2534.2 kg/ha). Hence, application of 5.0 t ha⁻¹ poultry manure on SAMSORG 44 is recommended for potential resource-constrained organic sorghum farmers in the humid tropics.

Different energy and protein levels for growth performance, serum biochemistry and intestinal development of squabs ( Columba livia ) under artificial feeding conditions

2025-06-02

T. W. Liu , J. G. Zhu , Jun Chen +6 more | British Poultry Science

1. The purpose of this study was to investigate the effects of different metabolisable energy (ME) and crude protein (CP) levels on the growth performance, serum biochemical indices, and intestinal … 1. The purpose of this study was to investigate the effects of different metabolisable energy (ME) and crude protein (CP) levels on the growth performance, serum biochemical indices, and intestinal development of pigeon squabs.2. A total of 324, 12 d old squabs were used and fed one of three ME (13, 12.5 and 12 MJ/kg) and three CP levels (18, 17 and 16%) to give nine experimental diets with six replicates each containing six birds (n = 6).3. Body weight of squabs at 28 d of age were the highest in group 3 (13 MJ/kg ME, 16% CP). Increasing ME or CP levels significantly elevated the relative weight of abdominal fat of squabs.4. A higher ME level in the diet induces higher serum content of total cholesterol and low-density lipoprotein, and greater levels of aspartate aminotransferase activity in 28 d old squabs. Compared with lower CP (16%) treatment, 18% dietary CP significantly increased the contents of serum urea nitrogen and uric acid. Duodenal villus length and pancreatic trypsin activity were the greatest in diet 3.5. The optimal dietary energy and protein levels of artificial crop milk for pigeon squabs in the late stage of growth were 13 MJ/kg ME and 16% CP from days 12-28 of age.