Farmed Pig Litter Management and Welfare

Litter management in pig housing affects multiple welfare dimensions including flooring injury, respiratory health, and behavioural expression. Getting it right is fundamental.

Key Facts

Deep straw bedding allows pigs to root, nest, and express natural behaviour - the gold standard substrate
Fully slatted floors eliminate litter management but prevent all substrate-based natural behaviours
Part-slatted floors with solid lying areas represent a welfare compromise in much commercial UK pig farming
Wet, compacted litter causes respiratory disease through ammonia release and skin lesions through prolonged damp contact
Dry, friable straw at adequate depth reduces tail biting, respiratory disease, and lameness simultaneously
RSPCA Assured pig standards require manipulable materials but depth and quality requirements are less specific
Automated straw dispensing systems have reduced the labour cost of straw provision in commercial units

Welfare Considerations

Pig litter management is a welfare decision with multiple simultaneous impacts. Dry, friable straw simultaneously reduces tail biting through enrichment, respiratory disease through lower ammonia, skin and joint health through cushioning, and psychological wellbeing through rooting behaviour expression. Wet, compacted slatted flooring simultaneously creates all these welfare problems. The economic barrier to straw use is real in fully-slatted systems, but the welfare return on investment is substantial across multiple dimensions.

What You Can Do

Support pig welfare certification standards that specify litter quality, not just presence
Ask pork retailers about litter provision and quality at their supplier farms
Advocate for phase-out of fully slatted floor systems as a welfare improvement priority
Support research into automated litter management systems that reduce labour while maintaining welfare quality