Tail biting in pigs is driven by barren environments and high stocking densities; tail docking addresses the symptom while welfare improvements address the cause.
Tail docking in pigs treats a symptom — tail biting — while leaving the cause — barren, overcrowded environments — unaddressed. The EU prohibition on routine docking, imperfectly enforced, reflects the welfare consensus that this painful procedure is justified only when genuine tail biting risk cannot otherwise be controlled. The deeper welfare improvement requires addressing why pigs bite tails: insufficient enrichment, excessive stocking density, and inadequate space for behavioral needs. Producers who invest in enrichment and appropriate housing conditions eliminate tail biting without the welfare compromise of routine docking.