COMPARATIVE STUDIES OF TETRACYCLINE DETECTION IN FOX TEETH IN THE REGIONS WITH ORAL VACCINATION AGAINST RABIES DURING 2016-2017 IN BULGARIA

During the period 2016–2017 in connection with control the effectiveness of oral vaccination, laboratory studies of tetracycline detection of teeth fox (Vulpes vulpes) were carried out in Bulgaria. From the regions with rabies vaccination during last two years total 1834 samples for presence of biomarker tetracycline were examinated and determined age categories of target animals. The teeth samples were collected from a total 578 settlements in 16 regions. The data indicated, that the rate of prevalence tetracycline in fox tееth varied between 65–73%.