Pigs are highly intelligent animals with problem-solving abilities comparable to dogs, and enrichment that engages their cognitive capacities significantly improves welfare in farm settings.
The cognitive sophistication of pigs creates a welfare obligation to engage their minds as well as meet their physical needs. A pig confined in a barren pen has its problem-solving and exploratory drive frustrated with no outlet, generating behavioral frustration that manifests as aggression and injurious behavior. Enrichment that presents genuine cognitive challenges — food hidden in substrate, manipulable objects, novel items rotated regularly — engages pig intelligence and reduces the behavioral problems that affect both welfare and farm economics. Cognitive enrichment for pigs is practical, inexpensive, and demonstrably effective.