Scientific research on pig play behavior reveals that play is a key welfare indicator and that enriched environments significantly increase positive emotional states.
Play in pigs is not frivolous — it is a reliable indicator of positive welfare and good physical health. A pig that plays is a pig that feels safe, comfortable, and engaged. Research by Broom, Fraser, and others demonstrates that play deprivation causes lasting behavioral changes and elevated stress responses. Providing rooting material, objects, and space for locomotion dramatically increases play frequency and overall welfare outcomes.