Farmed Pig Weaning Age Welfare | Animal Welfare Hub

The age at which piglets are weaned significantly affects their welfare, with early weaning practices common in intensive production causing documented behavioral and physiological harm.

Key Facts

Wild and extensively farmed pigs wean naturally at 12 to 17 weeks of age
Commercial intensive systems wean piglets at 21 to 28 days in many countries
Early weaning causes post-weaning diarrhea, gut inflammation, and immune suppression in piglets
Weaning stress manifests as belly-nosing, fighting, and redirected suckling behavior in piglets
EU regulations set minimum weaning age at 28 days with exceptions for health reasons

Welfare Considerations

Abrupt early weaning at 3 to 4 weeks of age is a major welfare event for piglets whose immune and digestive systems are not yet fully developed. The combined stress of maternal separation, social mixing, dietary change, and environmental change triggers a cascade of physiological and behavioral welfare problems. Later weaning at 5 to 7 weeks produces measurably better outcomes across multiple welfare indicators. Regulatory minimum weaning ages represent a welfare floor that responsible producers can and should exceed.

What You Can Do

Support pork certification schemes requiring weaning ages of 28 days or older
Advocate for elimination of weaning age exceptions in welfare regulations
Learn about the physiological welfare basis for later weaning and share this with consumers
Choose pork from producers with transparent weaning age practices and piglet welfare records