DairyTalk 654: 18 Traits, One Functional Optimum: What HCC Changes for Sire Selection - by Helmut Demmelhuber

DairyTalk by Helmut Demmelhuber · Sep 13, 2026 · 17m

This podcast episode is based on a technical article examining the Holstein Conformation Composite (HCC), introduced by Holstein Association USA as a new selection tool in August 2026. At its core is a fundamental shift in breeding philosophy: instead of rewarding increasingly extreme conformation, HCC targets functional optima for body structure, udders, feet, and legs. The article explains how a penalty-based approach evaluates deviations from defined ideals across 18 traits, changing the way conformation is translated into genetic selection. The broader objective is to connect physical…