Serum cortisol concentrations in captive tamed and untamed black-backed jackals (Canis mesomelas) and translocated dogs.

Serum cortisol levels were found to be higher in a group of captive untamed black-backed jackals (Canis mesomelas) than in a group of tame black-backed jackals. Repeated venipuncture of domestic dogs in an accustomed environment did not result in a rise in serum cortisol levels. Translocation of these dogs to a new environment resulted in a rapid but transient rise in serum cortisol levels.