Piglet castration is performed to prevent boar taint in pork, but causes acute pain and distress — and alternatives including immunocastration and genetic selection are increasingly viable welfare improvements.
Piglet castration welfare illustrates the welfare cost of production systems designed around consumer preferences rather than animal needs. Boar taint avoidance drives a painful procedure that is performed on tens of millions of piglets annually without pain relief in many countries. The alternatives exist and work: immunocastration delivers the production outcome without surgery; entire male production works in markets with appropriate genetics and management. The barrier is producer inertia, consumer unfamiliarity, and the cost of transitioning supply chains. Legislative mandates requiring anaesthesia for surgical castration, where it continues, combined with support for alternatives development, represent the most direct welfare improvement path.