Tail docking of piglets is performed to prevent tail biting, but it treats the symptom rather than the cause and causes significant acute pain, making environmental enrichment a more welfare-positive approach.
Pig tail docking illustrates the failure mode of treating welfare symptoms rather than welfare causes. Tail biting is a redirected foraging behavior driven by the frustration of being housed in barren, overcrowded environments without adequate rooting and investigative opportunity. Rather than addressing this root cause, the industry response has been to remove the target — the tail — causing painful acute injury to every piglet to prevent the consequences of poor welfare for some. Countries that have successfully phased out tail docking demonstrate that the alternative — providing sufficient enrichment to prevent tail biting in the first place — is commercially viable. Regulatory enforcement of the existing EU ban on routine tail docking and mandatory enrichment provision are the most direct paths to welfare improvement.