Research on pig play behavior provides a window into positive welfare states, offering producers and regulators objective indicators of psychological wellbeing beyond the absence of suffering.
Play behavior in pigs is one of the most visible and measurable indicators of positive welfare — animals only play when they feel safe, healthy, and unafraid. The widespread suppression of play in commercial intensive systems reflects the degree to which those systems fail to support basic psychological needs. Incorporating play behavior monitoring into welfare audits and certification schemes provides a practical, objective metric for welfare quality. Conversely, simple interventions like straw provision and increased space allowances dramatically increase play and all associated positive welfare indicators.