Farm Animal Welfare

Pig Tail Biting Investigation and Root Cause Analysis

Tail biting in pigs is a complex multifactorial problem, and investigating the root causes on individual farms is essential for targeted and effective prevention.

Key Facts

Over 30 risk factors for tail biting have been identified in research
Stocking density, ventilation, enrichment and nutrition all play roles
Tail biting often begins with one or two individuals who attract others
Early detection through daily observation allows intervention before an outbreak escalates
Removing biters and bitten pigs into separate hospital pens breaks outbreak cycles

Welfare Considerations

Tail biting outbreaks cause acute pain, blood loss and secondary spinal infection in affected pigs, and management stress in those living in affected pens. Root cause investigation - examining stocking density, enrichment quality, air quality, nutrition and group composition - identifies the specific drivers on each farm. Generic responses often fail because they do not address the specific cause.

What You Can Do

Support farmers conducting systematic root cause analysis of tail biting outbreaks
Advocate for tail biting monitoring and investigation in welfare audit frameworks
Choose pork from farms with active tail biting prevention programmes