Pig Farrowing Systems: Welfare Beyond the Crate

The transition from farrowing crates to loose farrowing systems is reshaping pig welfare debates, with evidence on piglet survival and sow welfare guiding policy.

Key Facts

Farrowing crates confine sows for approximately 4 weeks during farrowing and nursing, preventing all normal locomotion and behavioral expression
Loose farrowing systems allow sow movement but have historically shown higher piglet crushing rates in some management scenarios
Nest-building enrichment provided before farrowing in loose systems significantly reduces piglet mortality by improving maternal behavior
Modern welfare-optimized loose farrowing systems including the PigSAFE pen show sow and piglet welfare benefits over traditional crates
Denmark, Switzerland, Norway, and Sweden have banned or restricted farrowing crates with successful transitions to loose systems

Welfare Considerations

The farrowing crate debate involves genuine welfare tensions between sow behavioral freedom and piglet survival risk, but modern loose system design has largely resolved this tradeoff. Well-designed loose farrowing systems with appropriate nesting material, structural features reducing crushing risk, and good stockmanship can achieve piglet survival rates equivalent to or better than crates while dramatically improving sow welfare. The success of Nordic countries in transitioning to crate-free systems demonstrates that the welfare improvement is achievable at industry scale.

What You Can Do

Choose pork from producers using loose farrowing systems without gestation or farrowing crates
Support legislation requiring transition to loose farrowing systems with appropriate welfare design standards
Engage with retailers and food companies pushing for crate-free commitments across their pork supply chains
Support research into optimized loose farrowing system designs that maximize both sow and piglet welfare