The Five Domains Model Applied to Pig Welfare

The Five Domains model provides a comprehensive welfare assessment framework; applying it to pig production reveals welfare challenges that the older Five Freedoms approach underemphasises.

Key Facts

The Five Domains include nutrition, environment, health, behaviour, and mental state
The Five Freedoms focused on absence of negative states; Five Domains additionally addresses positive states
Domain 5 — mental state — encompasses anxiety, fear, boredom, and positive emotions
Commercial pig housing frequently fails domain 4 (behaviour) through lack of enrichment and social stability
Positive mental states in pigs can be assessed through cognitive bias and play behaviour tests

Welfare Considerations

The Five Domains model represents a conceptual advance over the Five Freedoms that has particular relevance for pig welfare assessment. While the Five Freedoms focused on preventing negative states — freedom from hunger, pain, distress — the Five Domains explicitly includes positive welfare states through the mental state domain. This shifts the welfare question from whether pigs are free from suffering to whether they are able to experience positive states — curiosity, play, social bonding, satisfaction from exploration. Applied to commercial pig production, this framework reveals that even technically compliant operations that avoid acute negative states may fail to provide conditions for positive welfare experiences that pigs are capable of enjoying.

What You Can Do

Support welfare assessment frameworks based on the Five Domains for pig production auditing
Advocate for positive welfare indicators including play and cognitive testing in pig assurance
Choose pork from farms assessed against positive welfare standards not just negative harm prevention
Donate to research applying Five Domains methodology to commercial pig welfare monitoring
Raise awareness about positive welfare as an important advance beyond harm prevention in animal welfare standards