Farm Animal Welfare

Pig Weaning Age Welfare and Early Life Development

Weaning age profoundly affects piglet welfare, with early weaning linked to behavioural problems and compromised immunity.

Key Facts

Commercial pig weaning at 21 days is far earlier than the natural 13-17 weeks of wild pigs
Early weaning stress contributes to post-weaning diarrhoea and growth faltering
Later weaning (28+ days) is associated with better immune development and reduced aggression
The EU bans weaning before 28 days except where sow health requires it
Earlier weaning allows shorter inter-litter intervals, increasing sow productivity at welfare cost

Welfare Considerations

Very early weaning causes psychological distress in piglets and disrupts immune system development. The drive to increase sow productivity by reducing lactation length imposes welfare costs on both sow and piglets. Weaning at 28+ days represents a meaningful welfare improvement available to producers without major system changes.

What You Can Do

Support welfare certification schemes that mandate minimum 28-day weaning age
Ask pork producers about their weaning age policy
Advocate for enforcement of existing weaning age minimums in EU member states
Support research on optimal weaning age and transitional nutrition for piglet welfare