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Animal breeding is a branch of animal science that addresses the evaluation (primarilary using best linear unbiased prediction) of the genetic value (estimated breeding value, EBV) of domestic livestock. Selecting animals for breeding with superior EBV in growth rate, egg, meat, milk, or wool production, or have other desirable traits has revolutionized agricultural livestock production throughout the world. The scientific theory of animal breeding incorporates population genetics, quantitative genetics and statistics, and is based on the pioneering work of Sewall Wright, Jay Lush, and Charles Henderson.

Contents 1 Breeding stock 2 Purebred breeding 3 Backyard breeding 4 Honors and awards 5 References 6 See also 7 References 8 External links 8.1 Academic centers 8.2 Journals 8.3 Organizations

[edit] Breeding stock

"Breeding stock" is a term used to describe a group of animals used for purpose of planned breeding. When individuals are looking to breed animals, they look for certain valuable traits in purebred animals, or may intend to use some type of crossbreeding to produce a new type of stock with different, and presumably superior abilities in a given area of endeavor. For example, when breeding swine the "breeding stock should be sound, fast growing, muscular, lean, and reproductively efficient."^[1] The "subjective selection of breeding stock" in horses has led to many horse breeds with particular performance traits.^[2]

[edit] Purebred breeding

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Mating animals of the same breed for maintaining such breed is referred to as purebred breeding. Opposite to the practice of mating animals of different breeds, purebred breeding aims to establish and maintain stable traits, that animals will pass to the next generation. By "breeding the best to the best," employing a certain degree of inbreeding, considerable culling, and selection for "superior" qualities, one could develop a bloodline or "breed" superior in certain respects to the original base stock.

Such animals can be recorded with a breed registry, the organisation that maintains pedigrees and/or stud books.

The observable phenomenon of hybrid vigor stands in contrast to the notion of breed purity.

[edit] Backyard breeding

The term backyard breeder is a general term, often considered derogatory, used in USA to describe people who breed animals, often without registration and with a focus on profit. In some cases the animals are inbred narrowly for looks with little regard to health.^[3][4] If a backyard dog breeder has a significant number of breeding animals, they become associated with the term puppy mill. Most puppy mills are licensed with the USDA.^[5]

[edit] Honors and awards

• The Rockefeller Prentice Memorial Award in Animal Breeding and Genetics, American Society of Animal Science

Since 1962

• National Association of Animal Breeders Award, American Dairy Science Association

1970–1978

• Jay L. Lush Animal Breeding and Genetics Award, American Dairy Science Association

Since 1982

• Fellowship of Association for the Advancement of Animal Breeding and Genetics

Since 1990

[edit] References

• Lush, JL (1937). Animal Breeding Plans. Ames, Iowa: Iowa State Press. 
• Kempthorne, O (1957). Introduction to Statistic Genetics. John Wiley & Sons. 
• Van Vleck, L. D., & Searle, S. R. (1979). Variance components and animal breeding: proceedings of a conference in honor of C.R. Henderson. Ithaca, N.Y.: Cornell University. 
• Henderson, CR (1984). Applications of linear models in animal breeding. Guelph, Ont: University of Guelph. ISBN 0-88955-030-1. 
• Hammond K. Gianola, D (1990). Advances in Statistical Methods for Genetic Improvement of Livestock (Advanced Series in Agricultural Sciences). Springer-Verlag Berlin and Heidelberg GmbH & Co. K. ISBN 3-540-50809-0. 
• Massey, JW and Vogt, DW (1993), Heritability and Its Use in Animal Breeding, Department of Animal Sciences, University of Missouri, http://extension.missouri.edu/xplor/agguides/ansci/g02910.htm 
• Mrode, R. A. (1996). Linear models for the prediction of animal breeding values. Oxon: CAB International. ISBN 0-85198-996-9. 
• Cameron, N. D. (1997). Selection indices and prediction of genetic merit in animal breeding. Oxon: CAB International. ISBN 0-85199-169-6. 
• Dalton, C, Willis, MB (1998). Dalton's Introduction to Practical Animal Breeding. Oxford: Blackwell Science. ISBN 0-632-04947-2. 
• Bourdon, RM (2000). Understanding animal breeding. Englewood Cliffs, N.J: Prentice Hall. ISBN 0-13-096449-2. 
• Newman, S, Rothschild, MF (2002). Intellectual Property Rights in Animal Breeding and Genetics. Wallingford, Oxon, UK: CABI Pub. ISBN 0-85199-641-8. 

[edit] See also

• Selective breeding
• Artificial selection
• Plant breeding
• Agricultural science
• ASReml
• Progeny testing
• Arthur B. Chapman
• James Hutton
• Robert Bakewell

[edit] References

[edit] External links

• Animal Breeding - The Genetic Basis Of Animal Breeding, Economic Considerations, Modern Methods In Biotechnology, Artificial Insemination, http://science.jrank.org/pages/380/Animal-Breeding.html 
• Guidelines For Uniform Swine Improvement Programs, National Swine Improvement Federation, 2003, http://www.nsif.com/guidel/guidelines.htm 

[edit] Academic centers

• Animal Breeding and Genomics Centre, Wageningen University, Netherlands, http://www.abg.wur.nl/UK/ 
• Animal Breeding and Genetics Group, University of Georgia, USA, http://nce.ads.uga.edu/ 
• Centre for Genetic Improvement of Livestock, University of Guelph, Canada, http://cgil.uoguelph.ca/ 
• Animal Breeding & Genetics, Cornell University, USA, http://www.ansci.cornell.edu/abc/index.html 
• Animal Breeding & Genetics, Iowa State University, USA, http://www.ans.iastate.edu/section/abg/ 
• Breeding and Genetics Program, Colorado State University, USA, http://ansci.colostate.edu/content/view/4/ 
• Animal Genetics and Breeding Unit, University of New England, Australia, http://agbu.une.edu.au/ 

[edit] Journals

• Journal of Animal Breeding and Genetics, ISSN 0931-2668, http://www.blackwellpublishing.com/journal.asp?ref=0931-2668 

[edit] Organizations

• Association for the Advancement of Animal Breeding and Genetics, Australia, http://www.aaabg.org/aaabg18/ 
• Roslin Institute, Scotland, http://www.ri.bbsrc.ac.uk/ 
• Animal Breeding, Genetics & Genomics, Cooperative State Research, Education, and Extension Service, USA, http://www.csrees.usda.gov/animalbreedinggeneticsgenomics.cfm 
• Animal Improvement Programs Laboratory, Beltsville Agricultural Research Center, USA, http://www.ars.usda.gov/Main/site_main.htm?modecode=12-65-05-00 
• Animal Genetics and Breeding Unit, Australia, http://agbu.une.edu.au/index.php 

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