DairyTalk 322: Genomic Selection Accelerates Inbreeding in Holstein Breeding Programs - by Helmut Demmelhuber

DairyTalk by Helmut Demmelhuber · Mar 7, 2026 · 23m

This podcast episode is based on a technical article analyzing the economic impact of rising inbreeding levels in the Holstein breed. By 2024, average inbreeding reached 9.99%, translating into an estimated loss of around $100 per cow through reduced fertility and higher health costs. The trend has been accelerated by genomic selection, which concentrates dominant sire lines more rapidly within breeding programs. The article contrasts two practical responses: a structured three-breed crossbreeding system designed to restore hybrid vigor, and a purebred strategy that relies on a customized…