Pig Weaning Stress: Minimising Early Welfare Impact

Early weaning of piglets at 21-28 days in commercial pig production causes significant welfare stress, and management strategies can substantially reduce its impact.

Key Facts

Commercial weaning in the UK typically occurs at 21-28 days, before the natural weaning age of 12-17 weeks
Weaning causes simultaneous separation from the sow, diet change, mixing with unfamiliar pigs and social restructuring
Post-weaning diarrhoea is a major welfare and production problem, partly driven by the stress of early weaning
Later weaning (28-42 days) reduces weaning stress and improves piglet welfare but reduces sow productivity
Creep feeding, familiar bedding transfer and mixing management can all reduce weaning stress in commercial systems

Welfare Considerations

Weaning is one of the most stressful periods in a pig's life, combining multiple simultaneous stressors that compromise immune function, gut health and behaviour. The welfare case for at least delaying weaning to 28 days in all commercial systems is strong, and for providing appropriate management support during the weaning transition. Farms that invest in creep feeding, appropriate mixing strategies and nutritional support during weaning show substantially better welfare outcomes and reduced antibiotic use.

What You Can Do

Support legislation to mandate minimum weaning ages in pig production
Advocate for weaning management standards to be included in all pig welfare certification schemes
Choose pork from certified higher welfare systems that require later weaning
Support research into weaning management strategies that reduce stress without reducing sow productivity
Engage with pig farmers and their vets about implementing evidence-based weaning management protocols