Outdoor Pig Welfare: Pasture Systems, Welfare Outcomes, and Challenges

Outdoor pig farming systems offer significant welfare advantages over indoor intensive production, but also present specific challenges requiring active management to achieve best outcomes.

Key Facts

Outdoor pigs show dramatically higher rooting and foraging behaviour — typically 40-60% of waking time versus under 5% in barren indoor systems
Sunburn is a significant welfare risk for outdoor pigs — wallows and shade structures are essential, not optional
Parasite burden is higher in outdoor systems and requires integrated management including rotation, monitoring, and targeted treatment
Outdoor pigs show lower rates of tail biting, aggression, and stereotypy compared to indoor-housed equivalents
RSPCA Assured and Soil Association certification schemes require outdoor or deep-litter systems with documented welfare standards

Welfare Considerations

Outdoor pig welfare achieves the highest scores for most behavioural welfare indicators — rooting, foraging, dustbathing, and social behaviour are all well-expressed in outdoor systems. The welfare challenges of outdoor production are manageable: wallows eliminate sunburn risk, rotational grazing manages parasite burden, and proper shelter prevents cold stress in winter. Well-managed outdoor pig farms represent the welfare optimum for commercially produced pork. Consumer demand for RSPCA Assured and Soil Association certified outdoor pork drives the economic viability of these systems.

What You Can Do

Choose RSPCA Assured or Soil Association certified outdoor pork for the highest welfare outcome
Support farm assurance schemes that require genuine outdoor or deep-litter systems with verified welfare standards
Visit a certified outdoor pig farm if possible — understanding the difference from indoor production builds effective advocacy