The physical design of pig housing profoundly affects welfare, and innovative pen configurations can meet both biological needs and production efficiency requirements.
Pigs are intelligent animals with strong motivational drives to root, explore, and socialize. Pens that deny these behaviors cause chronic frustration and boredom that manifests as aggression, stereotypies, and redirected behaviors like tail biting. Welfare-positive pen design includes bedding that enables rooting, separate functional zones for elimination, resting, and feeding, and enrichment objects that provide cognitive stimulation. These designs require more space but produce demonstrably better welfare outcomes.