Farmed Pig Positive Welfare Indicators and Assessment

Moving beyond preventing suffering to actively promoting positive states in farmed pigs requires identifying reliable indicators of good welfare, not just the absence of negative ones.

Key Facts

The Five Domains framework identifies positive mental states as a core welfare goal alongside negative state prevention
Play behaviour in pigs is a reliable indicator of positive affective state - observed in healthy, unstressed pigs
Ear and tail position provide real-time welfare information - relaxed ears and freely wagging tails indicate positive states
Cognitive bias testing (optimism/pessimism) has been validated as a welfare assessment tool in pigs
Social bonding and affiliative behaviours (nose contact, resting together) indicate positive social states
Anticipatory behaviours before feeding events can indicate whether pigs are in positive or negative states
The Cambridge Wellbeing Index for pigs combines multiple indicators into a composite score

Welfare Considerations

The shift from welfare as 'absence of suffering' to 'presence of positive experiences' represents the most significant conceptual advance in animal welfare science in recent decades. For pigs, this means not just reducing pain and fear, but actively providing opportunities for play, exploration, social bonding and positive anticipation. Farms that monitor positive welfare indicators - play, affiliative behaviour, ear position - alongside negative ones gain a richer picture of actual pig experience. The most welfare-progressive farms set targets for positive indicator frequency, not just thresholds for negative indicator reduction.

What You Can Do

Support pork producers whose welfare standards explicitly include positive welfare goals
Learn to recognise signs of positive welfare in pigs - play, tail wagging, relaxed ears
Advocate for farm assurance scheme standards to include positive welfare indicators
Support research funding for validated pig positive welfare assessment tools
Choose pork from farms with accreditation schemes that include behavioural welfare assessment