Pig enrichment research has advanced significantly, but translating evidence into effective commercial practice remains challenging. Understanding what works, why, and how to implement it drives meaningful welfare improvement.
Pig enrichment science has generated robust evidence about what works, making the gap between evidence and commercial practice a policy and implementation challenge rather than a knowledge one. The evidence is clear: loose organic substrate that pigs can root, manipulate, and nest in is dramatically more effective than the chains, rubber toys, and plastic objects that satisfy regulatory requirements while providing minimal behavioral welfare benefit. The implementation barrier is system design: automated slurry systems cannot handle long straw without blockage. This is a solvable engineering problem - short straw, alternative substrates, and modified delivery systems - but it requires investment and management change. Consumer pressure for genuine enrichment rather than compliance-box-ticking is the most effective driver of this investment.