Overview: Evidence-based approaches to preventing tail biting in pig production, a major welfare and economic problem.
Key Welfare Facts
Tail biting is a damaging redirected behaviour driven by frustration, competition, and environmental deprivation.
Bitten pigs experience severe pain, infection, and in serious cases, spinal abscesses and mortality.
Risk factors include overcrowding, barren environments, poor ventilation, nutritional deficiencies, and mixing unfamiliar pigs.
Enrichment provision—straw, wood, chains, and rooting substrates—reduces tail biting significantly.
Routine tail docking reduces outbreak severity but does not address the root causes of the behaviour.
Early detection through regular pen observation allows prompt intervention before outbreaks escalate.
Welfare Assessment
Addressing tail biting requires tackling root causes through environmental enrichment, lower stocking densities, and good stockmanship. Systems that prevent tail biting entirely offer the best welfare outcomes and make routine docking unnecessary.
What You Can Do
Choose pork products from farms providing enriched housing and straw
Support certification schemes requiring enrichment provision in pig housing
Advocate for higher space allowances in pig production regulations
Ask retailers and restaurants about tail-docking policies of their suppliers