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Design of experiments to estimate offspring-parent regression using selected parents

Published online by Cambridge University Press:  02 September 2010

W. G. Hill  and
R. Thompson
W. G. Hill
Affiliation:
Institute of Animal Genetics, Edinburgh EH9 3JN
R. Thompson
Affiliation:
ARC Unit of Statistics, Edinburgh EH9 3JZ
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Summary

Heritability or the genetic regression of one trait on another, for example live-weight gain in field v. performance test station conditions, can be estimated efficiently by rearing offspring only from high- and low-ranking individuals, and estimating the regression of offspring on parent performance. Formulae are given for the optimum proportion of available animals to select as parents when the relative numbers of individuals in the parent and progeny generation are fixed. Although the optimum depends on the value of the parameter to be estimated, the designs are very robust to poor estimates.

Type
Research Article
Information
Animal Production , Volume 24 , Issue 2 , April 1977 , pp. 163 - 168
Copyright
Copyright © British Society of Animal Science 1977

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References

REFERENCES

Hill, W. G. 1970. Design of experiments to estimate heritability by regression of off-spring on selected parents. Biometrics 26: 566–571.Google Scholar
Nishida, A. and Abe, T. 1974. The distribution of genetic and environmental effects and the linearity of heritability. Can. J. Genet. Cytol. 16: 3–10.CrossRefGoogle Scholar
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Thompson, R. 1976. Design of experiments to estimate heritability when observations are available on parents and offspring. Biometrics 32: 283–304.CrossRefGoogle ScholarPubMed