Tail biting in pigs is a serious welfare problem in intensive systems that causes pain, injury and secondary infection, requiring multi-factorial prevention strategies.
Tail biting causes acute severe pain and progressive tissue damage. Victims are repeatedly bitten by curious penmates, worsening injuries. Septic wounds can lead to spinal infection and death. The behaviour spreads rapidly through groups once blood is drawn. Prevention through enrichment, appropriate stocking density and good management is far more effective than tail docking which only reduces injury severity rather than addressing the cause.