Different pig housing systems present distinct welfare profiles, and understanding these differences helps consumers make more informed choices about pork purchasing.
Pig housing system comparisons are useful but imprecise welfare guides: the same housing category can produce very different welfare outcomes depending on stocking density, enrichment quality, stock person competence, and management practices. Outdoor systems generally offer the most behavioral freedom but expose pigs to environmental challenges. Indoor deep bedding systems provide good behavioral opportunity with environmental protection. Fully slatted concrete systems are the most welfare-compromised but predominate economically. Welfare outcome measurement — what actually happens to the pigs in terms of health, injury, and behavioral indicators — provides more meaningful welfare information than housing category labels. Consumers benefit from certification schemes that verify outcomes rather than merely system type.