DairyTalk 226: Top Genomics, Weak Barn? Why Numbers Alone Aren’t Enough - by Helmut Demmelhuber

DairyTalk by Helmut Demmelhuber · Jan 10, 2026 · 16m

This article critically examines the current use of genomic breeding values in bull selection. While lethal defects have been successfully reduced, economically problematic traits such as high somatic cell counts or unstable udders are increasingly overlooked—often masked by management-based justifications. The analysis shows that successful breeders and large-scale operations consistently track their own performance data, evaluate cow families across generations, and deliberately safeguard genetic diversity. The article warns of rising inbreeding levels and overly optimistic genomic values…