Farm Animals

Pig Social Behavior Welfare

Pigs have complex social lives requiring appropriate group composition, space, and resources to maintain harmonious social relationships.

Key Facts

Pigs establish stable dominance hierarchies through initial fighting that stabilizes over time
Mixing unfamiliar pigs causes aggression until a new hierarchy is established
Small, stable groups with adequate resources experience lower ongoing aggression
Pigs show prosocial behaviors including consolation of distressed group members

Welfare Considerations

Pig social behavior requires management systems that allow stable group formation, adequate resources to reduce competition, and space for subordinate animals to escape dominant ones. Commercial systems that frequently remix pigs cause repeated fighting and chronic social stress. Stable group management with adequate resources allows pigs to express their natural social repertoire including prosocial behaviors.

What You Can Do

Support pig welfare standards specifying stable group management practices
Advocate for space requirements that allow social behavior expression
Choose pork from farms with documented stable social group management
Support research into optimal pig group management for social welfare