Modern pig welfare assessment is shifting from focusing solely on negative indicators of suffering to measuring positive welfare states including play, exploration, and behavioral indicators of contentment.
The shift toward positive welfare assessment in pig production reflects scientific recognition that good welfare is not merely the absence of suffering but involves the presence of positive experiences. Pigs in ideal conditions play, explore, root enthusiastically, engage in social bonding, and show behavioral indicators of contentment. These behaviors are not frills but indicators of psychological wellbeing. Assessment frameworks that only measure disease, injury, and behavioral problems miss half the welfare picture — a farm can eliminate most negative indicators while still providing such limited opportunity for positive experiences that pig welfare remains poor. Incorporating positive welfare indicators into certification and regulatory standards creates a more complete welfare picture and drives producer investment in the environmental complexity and enrichment that enables positive states.