SPREAD OF DIPHYLLOBOTRIOSIS IN DOGS IN THE BARGUZINSKY DISTRICT OF THE REPUBLIC OF BURYATIA

The aim of the study is to identify the intensity and extensiveness of the invasion among fish and dogs. Objectives: to identify the intensity and extensiveness of the invasion among fish and dogs in the Barguzinsky District of the Republic of Buryatia; to study the spread of diphyllobothriasis in the Barguzinsky District of the Republic of Buryatia; to study the effectiveness of anthelmintic drugs used to treat the invasive disease. The studies were conducted during 2021–2023 at the FSBEI HE Buryat State Agricultural Academy named after V.R. Filippov. Diagnostic studies were carried out, the epizootological situation for diphyllobothriasis in fish and dogs was studied, the most effective anthelmintic drugs were identified. The object of the study was three species of fish (Siberian roach, pike and perch) caught in the Barguzin River, as well as dogs. The results of research showed that the Siberian roach, perch and pike are infested with the pathogen Diphyllobothrium Dendriticum (gull tapeworm). At the same time, the extensiveness of the invasion in the Siberian roach, pike and perch was 63; 60 and 70 %, respectively, while the intensity of the invasion was 2.84; 3.33 and 13.00 plerocercoids, respectively, in each fish species. Studies of dogs with diphyllobothriasis showed that the prevalence of the infestation was 75 %. The infested animals were divided into three groups: two experimental and one control. The dogs were drowsy, had no appetite, and were losing weight. In the first experimental group, the dogs were treated with Prazitel Plus (suspension), in the second group – with Inspector Quadro Tabs, and the dogs in the control group were not treated. The study showed that the anthelmintic drugs Prazitel Plus and Inspector Quadro Tabs are effective. In the coastal zone, it is necessary to carry out a set of measures to prevent and eliminate diphyllobothriasis in carnivores. Particular attention should be paid to preventive talks with the population of the area about not allowing raw or poorly processed fish to be eaten by people or fed to carnivores.