Pigs are among the most cognitively sophisticated farm animals, capable of complex learning, play, and problem-solving. Enrichment that engages their intelligence dramatically improves welfare.
Cognitive under-stimulation in pigs creates a state of chronic boredom and frustration that drives aggression, tail-biting, and stereotypic behaviours. Providing enrichment that engages pig intelligence — not just simple chew toys but foraging challenges, problem-solving opportunities, and social complexity — transforms on-farm behaviour and welfare outcomes. Research demonstrates that enriched pigs are less fearful of humans, show more positive affect indicators (play, social exploration), and have better physical health. The economic case for cognitive enrichment is also emerging: reduced tail-biting means fewer injuries, less tail docking, and lower veterinary costs. Cognitive enrichment should be seen as a basic welfare requirement for an animal of the pig's intelligence level, not an optional add-on.