Research into pig enrichment has identified effective materials and delivery methods that dramatically reduce tail biting and improve behavioral welfare in commercial settings.
Pig enrichment research has moved from generic object provision to understanding the specific motivational properties that satisfy rooting drives. The key finding is that pigs need manipulable, destructible materials that provide changing sensory feedback — chains and hard plastic fail to satisfy the behavioral drive that straw and other organic materials meet. This research directly informs policy and practice changes with measurable welfare outcomes.