Gestating Sow Enrichment: Meeting Behavioral Needs During Pregnancy

Enrichment strategies specifically designed for pregnant sows that address nesting motivation, foraging needs and social dynamics.

Key Facts

Nesting motivation in sows peaks in the 24 hours before farrowing and is among the strongest behavioral drives in pig welfare
Frustration of nesting behavior in confined systems is associated with increased cortisol, stereotypies and longer, more difficult farrowings
Even small amounts of nesting material such as straw or paper significantly reduce nesting frustration scores
Group gestation systems allow social behavior expression but require careful management to prevent aggression
Rooting enrichment during gestation reduces oral stereotypies and maintains snout integrity
Environmental complexity during gestation improves piglet survival rates in some studies, linked to reduced maternal stress
Foraging enrichment for 2-4 hours per day can satisfy motivational needs without requiring full free-range systems

Welfare Considerations

Gestating sows in intensive systems face a particularly challenging welfare situation because pregnancy itself creates strong behavioral motivations that confined environments cannot satisfy. Nesting drive, rooting motivation and the need for social navigation are not luxuries but fundamental aspects of sow biology. Welfare science consistently demonstrates that providing even minimal nesting material and foraging opportunities produces measurable improvements in sow wellbeing, reproductive performance and piglet outcomes. The transition from gestation stalls to group housing, while representing significant progress, requires careful attention to enrichment provision and group management to realize its welfare potential rather than simply eliminating one constraint while introducing others.

What You Can Do

Choose pork products certified to higher welfare standards that require enrichment provision for gestating sows
Support legislation mandating nesting material for sows in the final week before farrowing as a minimum standard
Advocate for complete phase-out of gestation stalls in favor of enriched group housing systems
Support research into low-cost enrichment solutions accessible to small and medium producers
Reduce pork consumption or shift to higher welfare sources to drive market incentives for improved sow welfare