Play Behaviour and Positive Welfare in Pigs

Play behaviour in pigs is an indicator of positive welfare — pigs in good welfare states play frequently, providing a measurable signal of emotional wellbeing beyond the absence of suffering.

Key Facts

Pig play includes locomotor play (running and jumping), social play (wrestling and chasing), and object play
Play behaviour declines in pigs experiencing chronic stress or inadequate environments
Tail wagging in pigs, like in dogs, is associated with positive emotional states
Young pigs raised with enrichment play significantly more than those in barren environments
Play behaviour has been proposed as a positive welfare indicator for certification schemes

Welfare Considerations

Play is not frivolous — it is a reliable indicator that an animal feels safe, healthy, and has sufficient resources to invest in non-essential activities. Pigs that play are pigs in good welfare states. Conversely, the absence of play in young, healthy pigs is a warning sign of welfare problems. Measuring play frequency provides a positive welfare indicator that complements absence-of-suffering measures. The challenge is standardising play assessment for use in commercial audit contexts. Research is advancing on validated, practical play assessment tools that could be integrated into farm welfare monitoring.

What You Can Do

Support research into play behaviour as a validated positive welfare indicator for farm pigs
Advocate for positive welfare indicators including play behaviour in pig certification standards
Choose pork from producers using enriched housing systems where play is documented
Learn to recognise pig play behaviour to appreciate the welfare significance of enriched environments
Engage with the positive welfare framework as a complement to suffering-focused welfare assessment