Design of experiments to estimate offspring-parent regression using selected parents
1977; Cambridge University Press; Volume: 24; Issue: 2 Linguagem: Inglês
10.1017/s0003356100011624
ISSN1748-748X
Autores Tópico(s)Genetic and phenotypic traits in livestock
ResumoSUMMARY 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.
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