Weaning is one of the most stressful events in a pig's life, and welfare management during this transition period is critical to health and growth outcomes.
Early weaning conflicts with the piglet's developmental needs for maternal contact and gradual dietary transition. The combination of social disruption, immune challenge, and dietary change causes acute welfare impairment. Weaner management including gradual dietary transition, familiar companions, and environmental enrichment can significantly reduce post-weaning stress.