Effect of environmental stimuli on the core temperature of nervous dogs.
Temperature sensitive radio transmitters were implanted into the abdominal cavities of two substrains of pointer dogs to monitor the core temperature during a 12:12 L/D cycle. The results obtained from dogs of a nervous, person-aversive strain were best described by a partially-rectified sine curve, with well defined maxima during the light period. When similarly tested in a situation with minimal diurnal stimulation, the variation in temperatures was reduced. Temperatures of normal pointer dogs, kennel-mates of the nervous dogs, fluctuated very little by comparison. Their data fitted a straight line about as well as a sine curve.
Abdomen↗