Pig Outdoor Farrowing Welfare: Sow and Piglet Needs

Outdoor farrowing systems provide significant welfare benefits for sows but also carry specific risks that must be managed carefully.

Key Facts

Outdoor farrowing arcs allow sows to root, build nests, and express natural pre-farrowing behaviour.
Farrowing hut design — arc dimensions, bedding provision, and ventilation — critically affects piglet survival.
Crushing of piglets by sows is a major welfare and production concern, occurring at higher rates in outdoor systems.
Pastured outdoor systems carry lower disease burden for adults but require parasite management programmes.
Outdoor sows have significantly higher welfare scores for natural behaviour expression than indoor crated sows.
UK outdoor-bred pig standards are certified by Red Tractor and RSPCA Assured schemes.

Welfare Considerations

Outdoor farrowing represents a significant improvement in maternal welfare compared to farrowing crates, allowing sows to fulfil strong nesting and rooting drives. Piglet welfare requires careful management of farrowing arc design, bedding quantity and quality, and sow body condition. The welfare trade-off between sow freedom and piglet survival risk must be managed through good stockmanship rather than confinement.

What You Can Do

Choose pork products certified as outdoor-bred or free-range to support sow welfare.
Ask retailers about their sourcing policy for pork products and farrrowing systems used.
Support campaigns to ban the farrowing crate in the UK following changes to codes of practice.
Donate to organisations researching alternative farrowing systems that protect both sow and piglet welfare.