The effect of selection on genetic parameter estimates

Authors
van Dyk, R Neser, FWC Kanfer, FH
Citation
R. Van Dyk et al., The effect of selection on genetic parameter estimates, S AFR J AN, 31(2), 2001, pp. 107-114
Citations number
20
Categorie Soggetti
Animal Sciences
Journal title
SOUTH AFRICAN JOURNAL OF ANIMAL SCIENCE-SUID-AFRIKAANSE TYDSKRIF VIR VEEKUNDE
ISSN journal
03751589 → ACNP
Volume
31
Issue
2
Year of publication
2001
Pages
107 - 114
Database
ISI
SICI code
0375-1589(2001)31:2<107:TEOSOG>2.0.ZU;2-D
Abstract
A simulation study was carried out to investigate the effect of selection o n the estimation of genetic parameters for butterfat production in dairy ca ttle. It was found that selection leads to a substantial overestimation of fixed effects and variance components and an underestimation of heritabilit y estimates. This effect was attributed to the fact that all information on all animals in the analysis should be available to compensate for the effe ct of selection.