Farmed Pig Weaning: Early Separation and Welfare

Commercial pigs are weaned at 3-4 weeks compared to the natural weaning age of 12-17 weeks, causing significant welfare harm to both sows and piglets.

Key Facts

Commercial pigs are typically weaned at 21-28 days, far earlier than natural weaning at 12-17 weeks
Early weaning causes significant distress behavior in both sows and piglets
Post-weaning diarrhea is a major health and welfare problem linked to gut immaturity at weaning
Increased antibiotic use around weaning is linked to the stress and immune challenges of early separation
Higher-welfare systems use 28+ day weaning, with some organic systems extending to 40+ days
Natural behavior studies show piglets continue nursing on demand past 10 weeks in free-ranging conditions

Welfare Considerations

Early weaning in commercial pig production causes distress that is visible and measurable in both sows and piglets. Sows show increased aggression and stereotypic behaviors after separation. Piglets separated before gut maturity suffer increased rates of diarrhea and immune challenges requiring antibiotic treatment. Later weaning at 28+ days reduces these welfare harms and decreases antibiotic need. Natural weaning at the ages observed in wild pigs would be impractical in commercial systems, but minimum weaning age regulations represent a meaningful welfare improvement.

What You Can Do

Choose pork from producers certified under higher-welfare schemes with minimum 28-day weaning
Support minimum weaning age regulations for commercial pig production
Donate to organizations advocating for pig welfare reforms including weaning age standards
Reduce pork consumption or shift to certified higher-welfare products