Farm Animal Welfare

Pig Weaning Age and Welfare Outcomes

Early weaning of piglets is standard practice in commercial pig farming. Delaying weaning beyond three weeks significantly improves piglet welfare.

Key Facts

Commercial weaning at 21 days is standard in many countries, compared to 10-12 weeks naturally
Early weaned piglets show higher rates of post-weaning diarrhea, belly-nosing, and stress
Weaning at 28 days rather than 21 days reduces post-weaning stress indicators significantly
EU minimum weaning age of 28 days is better than the US standard of no minimum
Pre-weaning socialization and creep feed access ease the weaning transition

Welfare Considerations

Weaning is one of the most acutely stressful experiences in a piglet's life, involving separation from the mother, mixing with unfamiliar piglets, and diet change simultaneously. Delaying weaning to match more natural development timelines, and managing the transition carefully, significantly reduces the welfare cost of this unavoidable production practice.

What You Can Do

Choose pork from systems meeting minimum 28-day weaning age standards
Advocate for higher minimum weaning ages in US pig welfare legislation
Support higher welfare pig production systems with better weaning protocols
Discuss pig weaning welfare with retailers when asking about their sourcing policies