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DairyTalk 668: Does an Elite Cow Require an Elite Dam? What VG Conversion Reveals About Sire Performance - by Helmut Demmelhuber
This podcast episode is based on a The Bullvine analysis of nearly 10,000 Canadian Holstein first-lactation classification records, comparing 46 influential sires through a new measure of VG conversion efficiency. Rather than asking whether a bull can produce good daughters, the analysis examines how consistently his already strong daughters advance to elite scores of 87 or 88 points. Stress tests accounting for prominent show herds, maternal quality, and consistency over time help distinguish genuine genetic “upgraders” from sires whose strongest results depend heavily on exceptional cow…
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