Pig aggression and tail biting cause significant welfare harm in commercial production, but evidence-based environmental enrichment and management changes can substantially reduce their incidence without requiring tail docking.
Pig aggression welfare represents a systems failure — the redirected behaviors that cause harm in commercial settings are responses to environmental inadequacy rather than inherent pig aggression. This means that environmental solutions — enrichment, appropriate stocking density, stable social groups — address the root cause rather than only the symptom. The regulatory trend toward requiring meaningful enrichment and banning tail docking as a management crutch reflects the evidence that welfare improvement through environmental design is more effective and ethical than mutilation to manage the consequences of poor environments.