New pig housing systems are being developed that seek to provide better welfare than both conventional intensive and traditional outdoor systems.
Innovative pig housing welfare research is producing systems that transcend the conventional indoor-versus-outdoor binary. Deep bedding hoop barns provide rooting material and natural behavior opportunity at costs between intensive indoor and outdoor systems. Sensor-based monitoring detects tail-biting, respiratory problems, and lameness before they become severe welfare emergencies. Group farrowing designs that reduce crushing while allowing sow movement represent genuine engineering progress on one of pig welfare most persistent dilemmas. These innovations demonstrate that welfare and commercial viability are compatible goals.