aHumidity, wind chill, sun exposure, hydration state, physiological state, age, acclimation, and so on, can greatly influence these ranges (see Table 3-3). Professional judgment must be used in determining safe transportation of research animals.
bThe maximum and minimum temperatures of the range were derived from the upper limit and lower limit, respectively, of that species thermoneutral zone as described in Table 3-1, unless otherwise noted. Most larger mammals can be transported when the temperature is below freezing as long as the temperature inside the transport compartment does not cause frostbite or other signs of extreme cold. Conditions inside transport compartments, especially warm, deep bedding will allow animals to establish a microenvironment that is comfortable. Professional judgment should be used to assess risks to animal welfare when animals are preconditioned or not preconditioned for transport.
cTemperature derived from the lowest or highest temperature to which that species has been acclimated. It is possible that animals could be safely transported at more extreme temperatures; however, the literature neither supports nor negates the possibility.
dRecommended thermal conditions for swine.