Farm Animal Welfare

Pig Pen Design and Welfare Science

The design of pig pens profoundly affects welfare by influencing social dynamics, resource access, injury risk, and expression of natural behaviours.

Key Facts

Pen shape, size, floor type, and enrichment provision all affect pig welfare outcomes
Solid floors with adequate bedding reduce aggression and skin injuries compared to slatted systems
Group size and stability affect social hierarchy stress and resource competition
Space allowances below European legal minimums are still found in non-EU countries
Pen design research is generating evidence-based standards for housing systems globally

Welfare Considerations

Pen design is a structural determinant of pig welfare; evidence-based design standards that enable pigs to express natural behaviours are achievable within commercial systems.

What You Can Do

Support certification schemes requiring evidence-based pen design standards
Advocate for adoption of bedded systems and enrichment in pig housing
Follow developments in pig housing research and welfare science