Pig Enrichment Material Quality Evidence

Research on pig enrichment materials identifies which substrates genuinely engage pigs' investigative behaviour and improve welfare, versus those that are ineffective.

Key Facts

EU law requires pigs to have access to enrichment materials; chain and plastic toys are commonly provided
Studies show hanging chains and plastic toys have minimal welfare benefit after brief exploration
Destructible, manipulable materials including straw, paper, and wood are far more effective
Straw enrichment reduces tail biting significantly and provides thermal and nesting benefit
Farmers resistant to straw cite slurry management costs; innovations in bedded systems are addressing these

Welfare Considerations

Enrichment quality matters more than enrichment presence; providing ineffective enrichment materials while complying with legal minimums fails pigs and obscures real welfare deficits.

What You Can Do

Advocate for enrichment standards based on behavioural evidence, not compliance box-ticking
Support pig certification schemes that specify material quality and species-appropriate provision
Raise awareness that chain-and-toy enrichment is insufficient to meet pigs' investigative needs