DairyTalk 433: The Dangerous Assumption Behind High Genomic Rankings in Holsteins - by Helmut Demmelhuber

This podcast episode is based on an analysis published by The
Bullvine examining the hidden limitations of modern Holstein
genomics. Despite increasingly sophisticated genetic evaluations,
major factors such as mitochondrial DNA, copy number variations,
and random Mendelian sampling effects remain largely outside
standard genomic testing. The episode challenges the assumption
that elite genomic rankings automatically translate into superior
economic performance. In embryo marketing, young stock selection,
and aggressive breeding programs, these blind spots can lead to
costly strategic mistakes. The discussion also highlights why the
most successful breeders validate genomic data against cow
families, phenotype consistency, and herd-specific performance
trends. The core message is clear: genomics is a powerful
screening tool, but not a substitute for biological reality and
disciplined breeding judgment. With comments on a "The
Bullvine"-article (May 10th, 2026) by Andrew Hunt:
https://www.thebullvine.com