Red foxes (Vulpes vulpes) were immobilized with one of the following drug combinations: ketamine/xylazine (n = 22), ketamine/promazine (n = 35), ketamine/midazolam (n = 13), or tiletamine/zolazepam (n = 22). Foxes given ketamine/xylazine had the shortest induction and longest recovery times relative to other drug combinations, whereas foxes given ketamine/midazolam had the longest induction tim...

Red foxes (Vulpes vulpes) and gray foxes (Urocyon cinereoargenteus) were evaluated for their susceptibility to experimental infection with Ehrlichia chaffeensis, the causative agent of human monocytotropic ehrlichiosis. Two red foxes and three gray foxes were inoculated intravenously with E. chaffeensis (15B-WTD-GA strain) and were monitored at 7, 14, 21, and 28 days post inoculation (DPI) for ...

Isozymes have been studied in blood from the silver fox Vulpes vulpes and a few enzymes expressed variation (Simonsen et al. 1990). However, if live animals are to be studied obtainment of blood samples requires fixation or anaesthesia. Tissue samples are even more difficult to obtain. Earlier investigations, especially in forensic medicine, used a piece of cloth with e.g. bloodstains for detec...

The biological stability of natural groups (populations) of mammals under natural conditions is maintained by behavioral mechanisms based on the information-communicative interactions of individuals. Small predator mammals leading a lonely life, such as the red fox (Vulpes vulpes), and the marten family representatives – pine marten (Martes martes), ermine or short-tailed weasel (Mustela ermine...