genetic improvement of cattle and sheep cabi publishing

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Genetic Improvement Of Cattle And Sheep

Author : Geoff Simm
ISBN : 0851996426
Genre : Nature
File Size : 23. 40 MB
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Humans started domesticating farm livestock over 10,000 years ago. For much of this time, livestock have been changed genetically by subjective means. In the past 50 years, the application of scientific methods to animal breeding has led to major improvements in the output, cost and quality of animal products in the last few decades. This book describes the principles of genetic improvement of farm livestock and the practical application of these principles to dairy cattle, beef cattle and sheep breeding. Originally published in 1998 by Farming Press.

The Genetics Of Cattle 2nd Edition

Author : Dorian Garrick
ISBN : 9781780642215
Genre : Science
File Size : 20. 25 MB
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Since the time of domestication more than 10,000 years ago, cattle have played an increasingly crucial role in the development of human civilizations. Progress has been quite remarkable since the turn of the century; the sequencing of the bovine genome in 2009 launched new avenues for furthering our understanding of theoretical and practical aspects of cattle genetics. Covering a vast array of questions, this book reviews major topics from molecular and developmental genetics, disease resistance and immunogenetics to genetic improvement of dairy and beef breeds, addressing all current problems in the field. This second edition includes a new team of authors and completely new chapters on the genetics of fat production, nutrition, feed intake and efficiency, growth and body composition. Fully updated throughout, it provides a valuable resource on cattle genetics for researchers, breeders, veterinarians and postgraduate students.

Molecular And Quantitative Animal Genetics

Author : Hasan Khatib
ISBN : 9781118677407
Genre : Science
File Size : 77. 57 MB
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"Animal genetics is a central topic in upper-level animal science programs. Filling a void in existing literature on animal science, Animal Genetics introduces genetic principles and presents their application in production and companion animals. The book details population and quantitative genetics, epigenetics, biotechnology, and breeding among other topics. Useful in upper-level studies, Animal Genetics is an irreplaceable educational resource"--Provided by publisher.

Management And Welfare Of Farm Animals

Author : John Webster
ISBN : 9781118279403
Genre : Medical
File Size : 57. 3 MB
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Through successive editions, Management and Welfare of Farm Animals has gained international recognition as a classic introductory textbook for students of agriculture and veterinary science. Conceived by the Universities Federation for Animal Welfare (UFAW), the book has always sought to promote the humane treatment of livestock within the practical business context of modern farming. Now fully revised and updated, this fifth edition remains the most comprehensive and accessible guide available. Three animal groups appear here for the first time (game birds, South American camelids, and ostriches), and a chapter on horses has also been restored. Throughout, the book offers clear advice for the humane management of all major farmed species in the primary context of large-scale food production. However, this edition also takes full account of consumer demand (and legal requirements) for alternative farming methods and enhanced welfare standards, whether in conventional agriculture or the smallest of ‘hobby' farms. Brand new chapters reflect fresh understanding of welfare science, ethics, and the role of society in ensuring the best possible farm conditions. It remains an indispensable resource for students, and for all those seeking to promote animal welfare. Published as a part of the prestigious Wiley-Blackwell – UFAW Animal Welfare series. UFAW, founded 1926, is an internationally recognised, independent, scientific and educational animal welfare charity. For full details of all titles available in the UFAW series, please visit www.wiley.com/go/ufaw.

The Genetics Of Sheep

Author : C.A.B. International
ISBN : STANFORD:36105023147171
Genre : Nature
File Size : 54. 85 MB
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During the last two decades, major advances have been made in mammalian genetics. New methods in molecular and cytogenetics, and in biotechnology have been developed. Many of these have been applied to investigating the genetics of sheep and to improving the production of wool, meat and milk. This book is a comprehensive reference work on sheep genetics. All relevant topics have been included, from fundamental genetic structure to the genetics of various production and other traits, to transgenic sheep and genetic conservation. Chapters have been specially commissioned for the volume and written by internationally recognized experts from Europe, USA, Australia and New Zealand. The book will be invaluable to advanced students and research workers in animal genetics, breeding and biotechnology.

Dairy Production And Processing

Author : John R. Campbell
ISBN : 9781478632610
Genre : Technology & Engineering
File Size : 88. 53 MB
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A productive dairy industry is vital to providing safe, high-quality milk that fulfills the nutritional needs of people of all ages around the world. In order to achieve that goal, Campbell and Marshall present a timely, lucid, and comprehensive look at today’s dairy industry. Dairy Production and Processing offers not only a fundamental understanding of dairy animals, dairy products, and the production aspects of each, but also a wealth of applied information on the scope of the current milk and milk products industry. The application of basic sciences and technologies throughout the text will serve students well not only as they learn the first principles of dairy science, but also as a professional reference in their careers. Study questions can be found at the conclusion of each chapter, along with relevant and informative websites. An extensive glossary is provided to enable readers to expand their knowledge of selected terms. Topics found in this instructive and insightful text include: • an overview of the dairy industry, • dairy herd breeding and records, • the feeding and care of dairy cattle, sheep, goats, and water buffalo, • important principles of milking and milking facilities, • dairy farm management, • milk quality and safety, and • the production of milk and milk products.

Should We Aim For Genetic Improvement In Host Resistance Or Tolerance To Infectious Disease

Author : Andrea B. Doeschl-Wilson
ISBN : 2889191052
Genre :
File Size : 62. 60 MB
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Recent advances in quantitative genetic and genomic studies have shed light on the important role of genetic control strategies for reducing disease risk and severity in livestock populations. There are two alternative host defence strategies to infectious pathogens that could be enhanced by genetic selection: improvement of host resistance versus improvement of host tolerance to infectious pathogens. Resistance refers to mechanisms that restrict the reproduction rate of a pathogen within a host, whilst tolerance mechanisms focus on minimising the damage that a pathogen inflicts on the host. Both strategies may have a similar impact on individual host fitness and performance, but can have contrasting effects on population performance and disease risk and severity. For example, improving host resistance may result in successful eradication of a disease from a livestock population, whereas disease eradication may be difficult if hosts are tolerant as these can harbour the pathogen without showing obvious or severe symptoms. On the other hand, it has been argued that increasing host resistance would fuel the arms race between host and pathogen and stimulate pathogen evolution towards higher virulence. Increasing tolerance, in contrast, imposes no or little selection pressure on the pathogen. Further, whereas disease resistance mechanisms may be specific to a particular pathogen (e.g. development of specific antibodies), tolerance mechanisms that repair damaged tissues are associated with the host rather than the pathogen, and are thus more likely to be generic to a range of pathogens. Hence, improving tolerance may be beneficial if individuals are exposed to a variety of pathogens or pathogen strains, and disease eradication has proven difficult. In contrast to evolutionary biology and plant breeding, animal breeding has only recently started to seriously consider a distinction between disease resistance and tolerance and their consequences. However, a deeper understanding of the underlying mechanisms and implications of improving either or both of the host defence mechanisms on future disease risk and severity is urgently needed by animal scientists, veterinarians and breeders to make informed decisions that help to maintain healthy livestock populations and guarantee food security. The topic ‘genetic improvement of disease resistance v tolerance’ would lend itself to research papers covering a variety of aspects that need to be considered, such as ‘how to obtain genetic parameter estimates and genomic breeding values related to disease resistance / tolerance’, ‘evidence for host genetic influence of resistance or tolerance’, ‘genetic, genomic and immunological understanding of resistance / tolerance mechanisms’, ‘epidemiological consequences of improving disease resistance / tolerance’. I believe that this research topic is both timely and relevant, and that sufficient knowledge is available across disciplines for composing valuable research / review articles that stimulate interest to a wide range of readers of Frontiers, and thus promote the growth of this journal.

Organic Meat And Milk From Ruminants

Author : I. Kyriazakis
ISBN : 9789076998084
Genre : Medical
File Size : 82. 41 MB
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Selection Indices And Prediction Of Genetic Merit In Animal Breeding

Author : N. D. Cameron
ISBN : 0851991696
Genre : Nature
File Size : 57. 76 MB
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Information on an animal and its relatives can be used to predict the animal's genetic merit, taking account of the relationships between measurements and the economic values of traits. This book describes the methodology for predicting the genetic merit of animals in the context of improvement in an animal program. It discusses the methods for combing different sources of information and illustrates their use with examples of breeding programs in cattle, sheep, pigs, and poultry. This methodology is developed from first principles, without unnecessary detail or complexity, and all the required statistical and mathematical concepts are fully explained. A series of questions helps reinforce the ideas and provide some practical experience in the prediction of genetic merit. The text is most useful for final year undergraduate and first-year graduate students of quantitative genetics and animal breeding.

Animal Welfare And Meat Production

Author : Neville G. Gregory
ISBN : 9781845932152
Genre : Medical
File Size : 72. 60 MB
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"It is essential reading for students and practitioners in animal welfare and animal science, and will also be of interest to readers in meat, veterinary and food sciences, and applied ethology."--BOOK JACKET.

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