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Books in Animal science

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351-360 of 360 results in All results

Rabbit Feeding and Nutrition

  • 1st Edition
  • September 21, 1987
  • Tony J. Cunha + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 5 7 0 7 8 - 5
During the past few years, considerable reseach has been undertaken on rabbit nutrition. Rabbit producers, feed manufacturers, animal nutritionists, and others interested in rabbit production will find this book to be the new authority. Comprehensive and up-to-date, the book evaluates new information on such topics as protein digestion and requirements, nutrition/disease interrelationships, feeding behavior, and nutrional factors involved in enteritis.

General Parasitology

  • 2nd Edition
  • February 28, 1986
  • Thomas C. Cheng
  • English
  • eBook
    9 7 8 - 0 - 3 2 3 - 1 4 0 1 0 - 2
@from:From the Preface:Over a dozen years have passed since the first edition of this textbook was published. As is to be expected, tremendous progress has been made in the study of zooparasites and the nature of parasitism. This is especially true in the case of the protozoans and helminths of medical and economic importance. Continuing the original intent, this book is meant to be a teaching tool rather than a reference volume for seasoned investigators. It is meant to supplement formal lectures, but at the same time to provide students with sufficient information as to where more detailed review articles and primary research reports can be located.

Nitrogen and Energy Nutrition of Ruminants

  • 1st Edition
  • February 27, 1986
  • Ray L. Shirley + 1 more
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 9 2 5 7 9 - 0
This comprehensive volume examines the interrelationships of nitrogen and energy nutrition of ruminants. It provides exhaustive coverage of basic concepts, applications, and new research developments.Rumen microbial activity is emphasized. The author, an expert in animal nutrition, discusses new systems of determining dietary energy requirements, the effect of processing feedstuffs, and stress factors. He reviews the availability of nutrients in grains, distillers' grain residues, oilseed meals, molasses, silages, pastures, crop residues, and aquatic plants. Growth stimulants, nutritional management of ruminants in feedlots and pastures, and the value of feed additives are also among the topics considered.The scope of coverage provided by this volume will make it the leading reference for teachers, researchers, consultants, livestock producers, feed manufacturers, and all others who are involved in ruminant feeding and nutrition.From the Preface: This volume covers research on various nitrogen and energy feedstuffs and defines terminology commonly utilized in nitrogen and energy nutrition. The utilization of nitrogen and energy in oilseed meals, fish meals, cereal grains, distillers' residues, molasses, silages, grasses, hays, crop residues, animal waste, and nonprotein nitrogen sources is discussed. Details are given on development and utilization of net energy systems, systems for balancing total nitrogen, and nonprotein nitrogen with total digestible nutrients (TDN) or energy components of ruminant diets. Discussions are presented on metabolism, feedlot, milking, and grazing trials. Growth stimulants, processing of feedstuffs, type of animal, and environmental and management factors that affect feed intake, growth, feed efficiency, and quality of product are reviewed.Emphasis is given to the contributions of ruminal microbes in upgrading forage and nonprotein nitrogen sources to higher-quality bacterial protein, as well as their ability to downgrade high-quality protein and waste nitrogen when protein is fed in excess of microbial needs. Research is presented on means to increase bypassing of the rumen to prevent nitrogen wastage when ruminants are fed concentrate diets. Contributions of ruminal microbes in utilizing cellulosic materials as lignocellulose and hemicellulose as well as starch and other carbohydrates are discussed.

Acoustic Communication in Birds

  • 1st Edition
  • May 10, 1983
  • Kroodsma
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 9 2 4 1 7 - 5
Acoustic Communication in Birds, Volume 2: Song Learning and Its Consequences investigates acoustic communication in birds, with emphasis on song learning and its consequences. Some issues in the study of bird sounds are discussed, with particular reference to evolutionary considerations. The ontogeny of acoustic behavior in birds is also considered, along with sound production, neural control of song, and auditory perception. Comprised of nine chapters, this volume begins with an introduction to the nature, extent, and evolution of vocal learning in birds. Several well-documented examples in which vocal development appears to proceed independently of audition (and therefore independently of vocal learning) are presented, together with aspects of selective vocal learning; the timing of vocal learning; and selective forces that may have promoted the evolution of vocal learning in birds. Subsequent chapters explore the role of subsong and plastic song in the vocal learning process; the function and evolution of avian vocal mimicry; the ecological and social significance of duetting in birds; and microgeographic and macrogeographic variation in the acquired vocalizations of birds. The book also examines genetic population structure and vocal dialects in Zonotrichia (Emberizidae). This monograph will be of interest to ornithologists, evolutionary biologists, and zoologists, as well as to students of communication and bioacoustics.

Control of Pig Reproduction

  • 1st Edition
  • September 8, 1982
  • D.J.A. Cole + 1 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 7 8 3 2 - 2
Control of Pig Reproduction focuses on carefully evaluated techniques and technologies involved in the control of pig reproduction. The selection first ponders on the sexual development of male pigs, including early fetal, perinatal, and pubertal periods. The text also discusses testicular steroids and boar taint; interrelationships between spermatozoa, female reproductive tract, and egg investments; and artificial insemination. Discussions focus on androgens, estrogens, deposition of semen and uterine transit, sperm regulation and release by the isthmus, and types of artificial insemination. The manuscript examines endocrine control of sexual maturation in female pigs and sexual differentiation of the stimulatory estrogen feedback mechanism and factors affecting the natural attainment of puberty in gilts. Discussions focus on development of ovarian function and gonadal steroid levels; development of the stimulatory estrogen feedback mechanism; and maturation of negative feedback of gonadal steroids. The text also takes a look at controlled induction of puberty, endocrine control of the estrus cycle, and control of ovulation. The selection is a valuable reference for farmers and readers interested in pig reproduction.

Animal Migration, Orientation and Navigation

  • 1st Edition
  • January 28, 1981
  • Gauthreaux
  • English
  • eBook
    9 7 8 - 0 - 0 8 - 0 9 1 8 3 3 - 4
Animal Migration, Orientation, and Navigation presents the various aspects of animal migration, including the evolution of migration, climatic and meteorological influences, and bioenergetics. This book discusses the physiological control, sensory systems, orientation and navigation, and biological clocks and phenology aspects of animal migration. Organized into five chapters, this book begins with an overview of the migration strategies of animals in the context of a space continuum. This text then explains the influence of short- and long-term climatic cycles on the spectrum of migratory patterns in nature. Other chapters consider the energetic requirements of different migration strategies and the energy stores of the migrants. This book discusses as well the physiological basis of animal migration, with emphasis on endocrinal findings on the timing and energetic aspects of different migration strategies. The final chapter deals with the mechanisms used in direction finding by migrating animals. This book is a valuable resource for biologists and ecologists.

Genetics for Cat Breeders

  • 2nd Edition
  • January 1, 1977
  • Roy Robinson
  • G. A. Kerkut
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 1 - 6 0 9 4 - 8
Genetics for Cat Breeders, Second Edition covers the considerable advances in the practical application of genetics to cat breeding. This book is divided into nine chapters and begins with a discussion of the elementary principles of heredity. The subsequent chapters deal with the practical aspects of feline reproduction and development and the main factors in the practice of cat breeding. Other chapters examine the genetics of feline color and coat variation and breeds. These topics are followed by a review on the problem of genetic defects in cats. The last chapters considers the importance of record keeping in animal breeding, including providing an accurate record of familial relationship, information upon the phenotype characteristics and breeding performance, and a source of data for future decisions. This book will be of great value to biologists, cat breeders, and researchers.

Intensive Beef Production

  • 2nd Edition
  • August 1, 1974
  • T. R. Preston + 1 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 9 3 1 5 - 8
Intensive Beef Production, Second Edition focuses on the technologies, methodologies, and approaches involved in beef production, including genetics, breeding, feed utilization, fertility, and growth efficiency. The publication first elaborates on the beef market, carcass composition and quality, and genetic improvement. Discussions focus on breeding systems, correlation between traits, selection for meat production in dairy cattle, body weight and composition, carcass evaluation, consumption, and international trade. The book then examines genotype, physiology of digestion and feed utilization, and beef calf production, including factors controlling feed intake, nitrogen utilization, artificial methods of augmenting fertility, birth weight, calf mortality, and weaning weight. The text takes a look at dairy calf production, breed, sex, and hormones, and growth and efficiency. Topics include energy concentration and source, grain processing, protein, antibiotics, vitamins, growth mechanisms, breed, hormones, breed suitability, and mortality and disease. The book is a valuable reference for researchers interested in beef production.

Biology and Radiobiology of Anucleate Systems

  • 1st Edition
  • January 1, 1972
  • Silvano Bonotto + 2 more
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 6 7 4 0 - 1
Biology and Radiobiology of Anucleate Systems, I. Bacteria and Animal Cells documents the proceedings of the three-day symposium on Biology and Radiobiology of Anucleate Systems held in Mol, Belgium on June 21-23, 1971. This compilation mainly focuses on the anucleate systems, but some papers dealing with the function of membrane-bound polyribosomes and behavior of isolated cellular organelles are also included. The topics discussed include morphogenesis and synthesis of macromolecules in the absence of the nucleus; production of DNA-less bacteria; and modifications of radiosensitivity in nucleate and anucleate amoeba fragments. The heterogeneity of membrane-bound polyribosomes of mouse myeloma cells in tissue culture; squid giant axon; and cytoplasmic damage leading to delay of oral regeneration in Stentor coeruleus are also elaborated. This book likewise covers the regulation of protein synthesis in anucleate frog oocytes and DNA, RNA, and protein synthesis in anucleate fragments of sea urchin eggs. This publication is a good reference for students and researchers intending to acquire knowledge of the normal and irradiated cell and subtle relations between its nucleus and cytoplasm.

Keeping and Breeding Aquarium Fishes

  • 1st Edition
  • January 1, 1953
  • C. W. Emmens
  • English
  • eBook
    9 7 8 - 1 - 4 8 3 2 - 7 2 8 9 - 4
Keeping and Breeding Aquarium Fishes deals with the aquarium as a going concern, on the factors which enter into the maintenance of this state, and on fish breeding. Cold-water and goldfish enthusiasts may complain that the tropicals seem to get an overweight share of the text. This is because they need it. This book is not concerned with fancy varieties or show standards, except so far as they need special conditions for maintenance or breeding. The book opens with a chapter on the elements of a balanced aquarium, covering tanks, plants, and aquarium snails. This is followed by separate chapters on anatomy and physiology of fishes, fish foods and feeding, the principles of aquarium keeping, the process of setting up a tank, lighting and heating; and the aeration, filtration, and circulation of the water. Subsequent chapters deal with and aquarium rooms with breeding batteries; the breeding of livebearers, egg scatterers, anabantids, and cichlids; types of fish disease, and keeping saltwater fishes.

Related subjects

Animal behaviour and welfare

Animal biochemistry physiology and endocrinology

Animal ecology

Animal feed science

Animal genetics and breeding

Animal molecular biology

Animal nutrition

Animal production systems

Animal reproduction