DairyTalk 527: Early Fertility, Lower Lifetime Production: The Hidden Trade-Off of First-Calving Weight - by Helmut Demmelhuber

DairyTalk by Helmut Demmelhuber · Jul 4, 2026 · 21m

This podcast episode is based on a scientific study investigating how body weight at first calving influences the lifetime performance of dairy cows. At the center of the discussion is how heifer rearing strategies affect future milk production, fertility, longevity, and overall herd profitability. The research shows that lighter heifers often demonstrate better reproductive performance before first calving but tend to produce less milk and face a greater risk of early culling during their first lactation. In contrast, heavier animals generally begin their productive life with higher milk…