Pigs are highly intelligent animals whose cognitive needs are rarely met in commercial farming. Cognitive enrichment improves their welfare and reduces harmful behaviors like tail biting.
The mismatch between pig intelligence and the barrenness of typical commercial environments is a central welfare failure of industrial pig farming. Pigs evolved to spend up to 8 hours per day foraging, exploring, and engaging with a complex environment. Barren concrete pens deny these motivations entirely, resulting in redirected behaviors like tail biting — itself so damaging that routine tail docking became standard practice, masking the underlying welfare problem. Evidence overwhelmingly shows that appropriate cognitive enrichment reduces harmful behaviors, improves welfare indicators, and benefits production metrics. Complex enrichment — varied materials, problem-solving feeders, social play opportunities — represents a meaningful step toward respecting pig intelligence.