The environmental ecological factors influence on the corticosteroid activity of American minks (Mustela vizon Schr.) and silver-black foxes (Vulpes vulpes L.)

The research results of the corticosteroids content in American minks and silver-black fox blood serum and urine in comparative and specific aspect are presented in the article. Environmental conditions, temperature in particular, influence the animals stress level and respectively the corticosteroids hormones concentration.