Not all enrichment is equally effective for pigs - research identifies manipulable, novel, and species-appropriate materials as most welfare-beneficial.
Providing enrichment is a legal requirement in the EU but compliance often involves inadequate materials - chains and rubber balls that pigs quickly lose interest in provide little welfare benefit. Research-informed enrichment provision that prioritizes manipulable, degradable, and novel materials significantly reduces the rates of tail biting and aggression that indicate welfare failure in barren environments. Welfare certification schemes that specify enrichment quality, not just presence, drive meaningful improvements.