Pig Transport Welfare: Reducing Stress and Injury

Pig transport causes significant welfare harm through stress, injury, mixing of unfamiliar animals, and exposure to adverse conditions.

Key Facts

Approximately 80 million pigs are transported to slaughter annually in the United States
Mixing unfamiliar pigs on transport vehicles triggers fighting and injury
Heat stress during summer transport kills tens of thousands of pigs annually in North America
Pigs are particularly susceptible to transport stress due to their physiological sensitivity to heat and cold
Maximum transport times and density standards exist but vary significantly between countries and jurisdictions

Welfare Considerations

Transport represents the convergence of multiple welfare stressors for pigs - novel environment, mixing, vibration, noise, thermal extremes, and food and water deprivation. Pigs mixed with unfamiliar animals during loading or transport experience immediate aggression that causes bite wounds and injury. Heat stress causes panting, hyperthermia, collapse, and death in extreme cases. Pre-slaughter handling including stunning quality directly affects the welfare of transport-stressed animals. Welfare improvements including maximum journey time limits, mandatory lairage rest, temperature monitoring, and pre-transport withdrawal periods for ill animals show that better transport welfare is achievable with appropriate standards and enforcement.

What You Can Do

Support legislation establishing maximum pig transport times aligned with welfare science evidence
Choose pork from producers using short transport distances and documented welfare protocols
Advocate for mandatory temperature monitoring and emergency response protocols for livestock transport
Donate to research improving pig transport welfare standards and emergency intervention protocols