Animal welfare science has moved beyond measuring the absence of suffering to actively measuring positive states in pigs, enabling farms to document and improve emotional wellbeing.
The shift toward measuring positive welfare states in pigs represents a scientific and ethical advance in how we understand and evaluate farm animal lives. Rather than simply ensuring pigs are not sick, injured, or malnourished, positive welfare assessment asks whether pigs have opportunities to experience pleasure, curiosity, play, and social bonding. Research shows pigs with access to enrichment, stable social groups, and positive human contact display more play behaviour, less aggression, and cognitive bias tests that suggest a more optimistic emotional state. These positive experiences are not luxuries but fundamental components of a good life. Farm certification schemes that include positive welfare metrics create incentives for producers to move beyond minimum compliance toward genuinely improving pig lives. This shift has welfare, ethical, and commercial benefits.