Pig Transport Welfare: Distance, Duration and Mortality

Pig transport for slaughter and breeding involves significant welfare challenges including crowding, motion stress, thermal discomfort and unfamiliar social mixing. Evidence-based improvements are available but not universally applied.

Key Facts

EU regulations limit pig transport to 24 hours for regular transport and 27 hours with water and rest provisions
UK post-Brexit regulations proposed stricter limits; enforcement and implementation have been contested
Transport mortality in pigs is approximately 0.02-0.05% but can be higher in heat stress conditions
Pigs transported in unfamiliar social groups show increased aggression and stress
Loading is the highest stress phase of transport - electric prodder use causes acute pain and should be minimised
Water deprivation during transport causes dehydration stress, particularly critical in hot weather
Slaughter-weight pigs transported to unfamiliar facilities show elevated PSE (pale, soft, exudative) meat - a welfare indicator

Welfare Considerations

Pig transport welfare suffers from the same challenge as all livestock transport: economic pressure to fill vehicles, minimise journey time (for cost) while maximising journey duration where it saves money on closer abattoirs, and prioritise throughput over individual animal welfare. Research consistently shows that shorter journeys, lower stocking densities, better ventilation, water access and minimising electric prodder use all improve pig welfare outcomes during transport. The political and commercial will to mandate these improvements is the limiting factor, not the welfare science.

What You Can Do

Support shorter transport distance requirements in livestock welfare legislation
Choose pork and bacon from supply chains with documented short-transport or local abattoir policies
Advocate for a national maximum livestock transport duration
Support investment in local abattoir infrastructure to reduce transport distances
Ask retailers about their suppliers' transport distance data and welfare standards
Report suspected animal welfare violations during transport to APHA or the police