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A method for reducing inbreeding with Best Linear Unbiased Prediction

Published online by Cambridge University Press:  24 November 2017

B Grundy  and
WG Hill
B Grundy
Affiliation:
Cotswold Pig Development Company Limited, Rothwell, Lincoln LN7 6BJ
WG Hill
Affiliation:
ICAPB, University of Edinburgh, West Mains Road, Edinburgh EH9 3JT
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Extract

An optimum way of selecting animals is through a prediction of their genetic merit (estimated breeding value, EBV), which can be achieved using a best linear unbiased predictor (BLUP) (Henderson, 1975). Selection decisions in a commercial environment, however, are rarely made solely on genetic merit but also on additional factors, an important example of which is to limit the accumulation of inbreeding. Comparison of rates of inbreeding under BLUP for a range of hentabilities highlights a trend of increasing inbreeding with decreasing heritability. It is therefore proposed that selection using a heritability which is artificially raised would yield lower rates of inbreeding than would otherwise be the case.

Type
Genetics
Information
Proceedings of the British Society of Animal Production (1972) , Volume 1993: Winter meeting , March 1993 , pp. 33
Copyright
Copyright © The British Society of Animal Production 1993

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References

Henderson, C.R. 1975 Biometrics 31 423–449.Google Scholar
Toro, M.A. & Silio, L. 1992 43rd EAAP.Google Scholar