For Pigs outlines maximum loading recommendations depending on vehicle type and temperature. It does Some animals need to be transferred separately from others, for example mature boars, injured animals etc. If these animals are not separated, they may be unduly harmed or harm others. They suffer frostbite very quickly and can also be killed by wind chill. Necessary precautions to take for cold weather transport include providing bedding and liners.
Pigs have a very low tolerance to high temperatures and humidity.
Precautions reducing the possibility of heat stress include decreasing stocking densities, providing none or very limited bedding, ensuring maximum airflow through the vehicle, loading and unloading promptly and limiting any stops. Pigs should also be transported during the coolest part of the day. Some producers and transporters have sprinkler systems in their trucks to provide relief in case of emergency or extended wait for unloading.