Pig Weaning Stress: Reducing Early Life Welfare Challenges

Weaning at 21-28 days causes significant stress for piglets - management practices that reduce weaning trauma have lasting welfare and productivity benefits.

Key Facts

UK regulations require weaning at minimum 21 days - higher welfare standards often aim for 28+ days
Weaning stress causes elevated cortisol, reduced growth rates, and immune suppression
Mixing unfamiliar piglets at weaning creates aggression and social stress on top of separation stress
Solid food provision before weaning (creep feeding) eases the dietary transition
Familiar smells in the post-weaning pen can reduce stress behaviours

Welfare Considerations

Weaning is a major welfare challenge in pig production because it combines multiple stressors simultaneously - separation from the sow, dietary change, new social groups, and new environments. Each component can be mitigated: later weaning reduces stress, creep feeding prepares piglets for solid food, splitting littermates reduces social stress, and familiar bedding or odours ease environmental transition. Producers who address weaning comprehensively see better welfare outcomes and reduced post-weaning disease.

What You Can Do

Choose pork from producers using later weaning ages (28+ days)
Support certification schemes that audit weaning management practices
Advocate for higher minimum weaning ages in farm animal welfare legislation
Reduce pork consumption to support better welfare standards broadly