Play behavior in pigs is a positive indicator of good welfare, and providing conditions that encourage play improves overall pig wellbeing.
The presence of play behavior in pigs indicates that animals have sufficient resources, space, and freedom from fear and pain to invest energy in positive activities. Play is not merely an indicator of good welfare but contributes actively to positive emotional states and social development. Systems that support play — adequate space, enrichment materials, stable social groups — are associated with lower rates of tail biting, aggression, and stress-related conditions. Monitoring play behavior is a practical, non-invasive welfare assessment tool for farmers.