Farm Animals

Pig Weaning Stress and Gut Health

Early weaning of piglets from sows at 3-4 weeks causes significant stress and disrupts gut development, affecting welfare and performance.

Key Facts

Commercial weaning at 21-28 days is earlier than natural weaning at 10-17 weeks
Weaning causes simultaneous social, nutritional and environmental change
Post-weaning diarrhoea is a major welfare and production challenge
Liquid feeding at weaning improves gut health and reduces distress
Later weaning ages improve piglet welfare but require production system changes

Welfare Considerations

Early weaning causes measurable and significant stress in piglets. The simultaneous loss of the sow, change of environment and feed transition combine to create severe welfare impact. Mitigations including later weaning, better creep feeding and high-quality weaning diets reduce but cannot eliminate this welfare challenge without system reform.

What You Can Do

Support welfare standards requiring later minimum weaning ages
Advocate for liquid feeding systems to ease weaning transition
Choose higher-welfare pork from systems with later weaning ages