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Estimation of genetic parameters in a Suffolk sheep group breeding scheme

Published online by Cambridge University Press:  05 November 2021

M. Araghi ,
M.K. Curran  and
G.E. Pollott
M. Araghi
Affiliation:
Wye College - University of London, Ashford, Kent, TN25 5AH, UK
M.K. Curran
Affiliation:
Wye College - University of London, Ashford, Kent, TN25 5AH, UK
G.E. Pollott
Affiliation:
Wye College - University of London, Ashford, Kent, TN25 5AH, UK
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Extract

In 1989, ten Suffolk breeders co-operated to establish a nucleus flock at Wye College. The group is known as the Wye Suffolk Improvement Group (WSIG). The members each contributed 5-10 pedigree ewes to use as the initial nucleus flock. Eighty-nine ewes were delivered to the College by the various participants. The objective of this study was to obtain estimates of the heritabilities of live animal traits, used to improve carcass traits, and phenotypic and genotypic correlation estimates between them in the Suffolk lambs in the south of England.

Type
Animal Breeding
Information
Proceedings of the British Society of Animal Science , Volume 1996 , March 1996 , pp. 113
Copyright
Copyright © The British Society of Animal Science 1996

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References

Harvey, W. R., 1990. User's guide for LSMLMW and MIXMDL PC-2 version. Mixed model least-squares and maximum likelihood computer program.Google Scholar
Meyer, K., 1989. Restricted Maximum likelihood to estimate variance components for animal models with several random effects using a derivative-free algorithm. Genetique, Selection et Evolution, 21 : 317–340.10.1186/1297-9686-21-3-317CrossRefGoogle Scholar
Mercer, J.T., Brotherstone, S., Bradfield, M.J. and Guy, D.R. 1994. Proceedings of the 5th World Congress on Genetics Applied to Livestock Production 18, 39-42.Google Scholar
Pollott, G.E, Guy, D.R. and Croston, D. 1994. Genetic parameters of lamb carcass characteristics at three end-points : fat level, age and weight. Animal Production 58 : 65–75.Google Scholar
Simm, G. and Dingwall, W. S. 1989. Selection indices for lean meat production in sheep. Livestock Production Science, 21 : 223–233.10.1016/0301-6226(89)90052-3CrossRefGoogle Scholar