Enriched colony housing systems for pigs that provide social groups, manipulable materials, and space to express natural behavior represent a significant welfare advance over barren individual housing.
Enriched colony housing represents a fundamentally better welfare environment for pigs compared to individual barren confinement. The expression of social, exploratory, and rooting behaviors in enriched systems reflects a closer match to the behavioral needs of an intelligent social species. The commercial viability of these systems is increasingly demonstrated, reducing the economic argument against adoption. Consumer and retailer pressure has driven transitions in several major markets, demonstrating that market mechanisms can deliver welfare improvements when consumers prioritize welfare in purchasing decisions.