Tail docking of dairy cattle — removing part of the tail to improve milking hygiene — is a painful procedure that research shows provides no hygiene benefit and is increasingly banned.
Cattle tail docking is a practice that has survived primarily through habit despite the absence of evidence supporting the hygiene rationale used to justify it. Tails serve a biological function — fly deterrence — and their removal creates a permanent welfare deficit while causing unnecessary pain during the procedure. The scientific consensus against the practice is unusually clear: multiple well-designed studies have found no reduction in mastitis or hygiene improvements in docked cows. Eliminating tail docking requires regulation and industry culture change where dairy producers persist in the practice despite evidence.