Article
Need for sharp phenotypes in QTL detection for calving traits in dairy cattle.
Journal of animal breeding and genetics = Zeitschrift fur Tierzuchtung und Zuchtungsbiologie - 1 Dec 2009
Seidenspinner T, Bennewitz J, Reinhardt F, Thaller G
Abstract excerpt
The aim of the study was to investigate whether parity-specific phenotypes provide a clearer picture of quantitative trait loci (QTL) affecting calving traits in German Holsteins than breeding values estimated across parities. In experiment I, approximate daughter yield deviations were calculated by applying a univariate sire model assuming unrelated sires used as phenotypes in a QTL mapping study. These results...
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