Genomic selection and inbreeding and kinship in Dutch-Flemish Holstein Friesian cattle

Since 2009, genomic selection (GS) has been widely applied in Holstein Friesian (HF) breeding programs. In this study, we evaluated how the introduction of GS in the Dutch-Flemish HF breeding program has affected inbreeding and kinship trends, using both pedigree-based and genomic measures. Rates of inbreeding and kinship for artificial insemination (AI) bulls increased with the introduction of GS, from 0.1-0.7% in 2003-2009 to 1.6-2.5% in 2009-2015. Rates of inbreeding and kinship for cows also increased with GS, although they were lower than for AI-bulls (i.e. 0.79-1.14% in 2009-2017). Level... Mehr ...