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

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 profit index and strict limits on
individual bull usage. The discussion explores how dairy
operations can manage genetic diversity while maintaining
competitive breeding progress. With comments on a "The
Bullvine"-article (March 6th, 2026) by Andrew Hunt:
https://www.thebullvine.com