Pig Weaning Age and Gut Health Welfare

The age at which piglets are weaned from the sow has major welfare implications, with early weaning causing digestive stress, immune challenges and behavioural problems.

Key Facts

In commercial intensive systems, piglets are typically weaned at 21-28 days of age
Wild boar wean their young at 3-4 months, much later than commercial practice
Early weaning causes post-weaning diarrhoea, a major health and welfare problem in young pigs
The stress of weaning combines separation from the sow, mixing with unfamiliar pigs and diet change simultaneously
Later weaning (28+ days) is associated with better gut health and reduced antibiotic use
EU regulations require piglets to be at least 28 days old before weaning

Welfare Considerations

Weaning is one of the most stressful events in a pig's life, combining social disruption, nutritional transition and immune challenge simultaneously. The earlier weaning occurs, the less developed the piglet's gut and immune system, and the greater the suffering from post-weaning diarrhoea and associated disease. Commercial pressure to wean early and maximise sow productivity is in direct conflict with piglet welfare. Minimum weaning age requirements, combined with better transition diets and management, reduce this suffering. Extended lactation with gradual dietary transition is the closest to natural weaning that commercial systems can practically achieve.

What You Can Do

Support pig welfare certification requiring minimum 28-day weaning age
Advocate for antibiotic reduction strategies linked to later weaning and better gut health management
Choose pork from outdoor or higher welfare systems with better weaning age standards
Support research into weaning transition nutrition that reduces stress and antibiotic need
Engage with food companies about weaning age standards in their pig supply chains