Pig Outdoor Farrowing Welfare Standards

Outdoor farrowing systems allow sows to express natural nesting behaviour but also expose piglets to cold, predation, and crushing risks. Understanding best practice protects sow and piglet welfare.

Key Facts

Outdoor sows are allowed to build natural nests in farrowing huts, fulfilling a strong pre-farrowing behavioural drive
Crushing by the sow is the leading cause of piglet mortality in outdoor systems, particularly in cold wet weather
Farrowing hut design significantly affects crushing rates — good huts have escape rails and floor grip
Piglets under 3 days old are vulnerable to hypothermia in cold or wet outdoor conditions
Outdoor sows show significantly lower aggression and better welfare indicators than conventionally caged sows
Stocking density of outdoor farrowing paddocks affects soil quality, disease transmission, and animal welfare

Welfare Considerations

Outdoor farrowing represents a significant welfare improvement for sows compared to farrowing crates, but introduces new welfare risks for piglets. The compromise between sow welfare and piglet welfare is genuine and requires careful management. Poorly managed outdoor systems with inadequate huts, high stocking density, and insufficient bedding can cause suffering for both sows and piglets. Higher welfare standards require investment in infrastructure and stockperson skill.

What You Can Do

Choose outdoor-reared or free-range pork products certified to standards including farrowing welfare requirements
Support RSPCA Assured and Soil Association standards that include outdoor farrowing requirements
Ask producers and retailers about farrowing hut standards and crushing mortality rates
Reduce pork consumption and replace with plant-based alternatives where welfare cannot be verified
Support research into farrowing hut design that minimises crushing without restricting sow movement
Donate to farm animal welfare organisations working to improve outdoor farrowing standards