Outdoor pig production systems allow pigs to root, wallow, form stable social groups and express natural behaviors, offering substantially better welfare than indoor systems.
Outdoor pig production represents the closest approximation to natural pig living conditions achievable within commercial farming. Pigs in outdoor systems root for food, form stable family groups, wallow in hot weather, and access fresh air and natural light. Welfare indicators — stereotypy rates, aggression, cortisol levels — are substantially better than indoor counterparts. The trade-off is greater vulnerability to weather extremes and parasite exposure, requiring careful management. Nevertheless, when well-managed, outdoor free-range pig production offers welfare standards that indoor systems cannot match regardless of enrichment provision.