Tail docking - cutting off most of a piglet's tail without anesthesia - is performed routinely in commercial pig farming to prevent tail-biting. This painful mutilation addresses a symptom of poor welfare rather than its root causes.
Tail docking illustrates a systemic problem in animal welfare: addressing the symptom (tail-biting) with a painful mutilation rather than the cause (environmental deprivation). The procedure itself causes acute pain - the caudal tail contains bones, nerves, and blood vessels - and creates a wound that can become infected. Pigs that are docked and then develop tail biting injuries have suffered doubly. The availability of effective alternatives that eliminate tail-biting without mutilation (enrichment, stocking density reduction, improved nutrition) means that routine docking represents a failure of welfare by choice rather than necessity. Intact-tailed pig production systems demonstrate that welfare-positive production is commercially viable; the barrier is economic disincentive rather than technical impossibility.