Episode 325 - Calf Transport: Why Early-Life Management Matters More Than Miles - UMN Extension's The Moos Room

In this episode of The Moos Room, Brad dives into a landmark new study examining the effects of short- and long-distance transport on the health, survival, and growth of pre-weaned dairy and dairy–beef crossbred calves. Drawing on data from nearly 392,000 calves across multiple farms and transport durations (ranging from 30 minutes to 24 hours), the study challenges common assumptions about calf transport. Surprisingly, mortality upon arrival was extremely low and unaffected by transport length. Differences in mortality by weaning (60 days) were also modest and, importantly, were driven far more by early-life factors than by time spent on the truck.

The discussion highlights colostrum management as the single most critical factor influencing calf outcomes. Calves fed two colostrum meals had higher serum protein levels, significantly lower rates of failure of passive transfer, and were about 50% less likely to develop diarrhea—one of the leading causes of pre-weaning mortality. Other key drivers of calf survival included diarrhea, pneumonia, dam parity, gestation length, and birth season, with transport duration explaining relatively little of the variation in outcomes. Brad emphasizes that a calf’s “destiny is largely sealed before the wheels start rolling,” underscoring that management decisions made at birth—especially colostrum feeding, dam health, and environmental stress mitigation—matter far more than transport distance alone.

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