Farm Animal Welfare

Pig Wean Age Welfare and Piglet Development

Weaning age significantly affects piglet welfare, with early weaning causing stress and increasing disease susceptibility.

Key Facts

UK law requires minimum weaning age of 28 days except in registered outdoor herds
Many farms wean at 21-28 days; EU standard is minimum 28 days
Earlier weaning causes greater stress, immune suppression and post-weaning disease
Natural weaning occurs at 12-17 weeks in free-ranging conditions
Post-weaning diarrhoea and systemic disease are closely linked to early weaning practices

Welfare Considerations

Weaning age is a major determinant of piglet welfare. Earlier weaning causes acute separation stress, immune disruption and increased disease burden. Later weaning better matches biological development and reduces the welfare harms of the weaning transition.

What You Can Do

Support welfare standards requiring later minimum weaning ages for commercial pigs
Advocate for research into the welfare benefits of extended weaning for commercial production
Choose pork products from farms with documented higher minimum weaning ages