The first hours and days of a dairy calf's life are critical for both survival and welfare, with colostrum management, cow-calf separation, and early housing conditions having profound long-term effects.
Dairy calf welfare begins at birth and is shaped by decisions made in the first hours of life. The routine early separation of cow and calf is the most significant acute welfare event: both animals are highly motivated to maintain the bond, and separation causes genuine distress with measurable behavioral and physiological indicators persisting for days. The welfare cost of separation is compounded by the immediate transition of calves to artificial rearing environments. Disbudding without analgesia — still common globally — adds acute pain to an already stressful early-life period. Against this, extended contact programs that delay separation improve multiple welfare indicators, suggesting the current norm of immediate separation reflects production efficiency priorities rather than welfare optima. Whole-milk or high-quality milk replacer feeding, social housing, and pain management for procedures represent achievable improvements with strong evidence bases.