Genomic predictions for New Zealand dairy bulls and integration with national genetic evaluation.
A method is described for the prediction of breeding values incorporating genomic information. The first stage involves the prediction of genomic breeding values for genotyped individuals. A novel component of this is the estimation of the genomic relationship matrix in the context of a multi-breed population. Because not all ancestors of genotyped animals are genotyped, a selection index procedure is used to blend genomic predictions with traditional ancestral information that is lost between the process of deregression of the national breeding values and subsequent re-estimation using the genomic relationship matrix. Finally, the genomically enhanced predictions are filtered through to nongenotyped descendants using a regression procedure.
Harris
B L
BL
Livestock Improvement Corp., Hamilton, New Zealand.
Johnson
D L
DL
D000818:Animals; D001947:Breeding; D002417:Cattle / Q000235:genetics*; D003612:Dairying / Q000379:methods*; D016678:Genome / Q000235:genetics*; D008297:Male; D009520:New Zealand; D015203:Reproducibility of Results