Tail docking of piglets prevents tail biting injuries but itself causes pain and denies pigs an important sensory and social appendage.
Tail docking illustrates the welfare compromise trap in intensive pig farming: barren, overcrowded environments cause tail biting, which is then prevented by a painful procedure that removes the problem rather than addressing its cause. The tail is a sensory organ and social communication tool for pigs — its loss reduces behavioral capacity. The welfare solution requires addressing root causes: providing enrichment, reducing stocking density, and improving overall conditions. Countries that have achieved near-zero docking rates have done so through enrichment requirements rather than docking prohibitions alone.