Testing the efficiency of the improved method of coproovoscopy for gastrointestinal nematodoses of dogs

Dogs are an important component of established parasitic systems. At the same time, the unregulated accountingsystem and the lack of data on their number in specific regions make it difficult to imagine the objectiveepizootological parameters of this population and, in particular, their epidemic danger. Parasitic systems function inthe dog population, the co-members of which are gastrointestinal nematodoses, where the causative agents oftrichurosis and uncinariosis are the most common. The aim of the work was to improve, test and determine theeffectiveness of the method of lifelong coproovoscopic diagnosis of nematodoses of the digestive tract of dogs. Theimproved method refers to the field of veterinary medicine, namely veterinary parasitology, to methods ofcoproscopy, in particular, to methods of detecting eggs of causative agents of nematodoses of the digestive tract ofdogs. We conducted tests of flotation methods of coproovoscopy, such as: Fulleborn’s, Kotelnikov-Khrenov’s, themethod of coproovoscopy for trichurosis in sheep and the improved method for laboratory diagnosis of nematodosesof the digestive tract of dogs. It was found that 80 and 86.7 % of positive samples were detected for trichurosis anduncinariasis in dogs by the Fulleborn’s method, 93.3 and 100 % of positive samples were detected by theKotelnikov-Khrenov’s method, and 100 % of positive samples were detected by the coproovoscopy method forsheep trichurosis and the improved method. When using the Fulleborn’s method, the indicators of the intensity oftrichurosis and uncinariasis invasion were on average 69.7 and 44.9 eggs/g, Kotelnikov-Khrenov’s – 98.6 and64.8 eggs/g, and the coproovoscopy method for sheep trichurosis – 106.7 and 68.0 eggs/g, improved method – 130.7and 80.3 eggs/g. The improved method of lifelong coproovoscopy diagnosis of trichurosis and uncinariosis in dogswas more effective compared to the Fulleborn’s method by 46.7 and 44.1 %, Kotelnikov-Khrenov’s – by 24.6 and19.3 %, the coproovoscopy method for sheep trichurosis – by 18.4 and 15.3 %. The improved method and methodof coproovoscopy for trichurosis of sheep showed the highest coagulation properties in relation to undigested fodderresidues, where a small amount of small undigested fodder residues surfaced during the research. The obtainedresults allow recommending an improved method of coproovoscopy for effective laboratory diagnosis of trichurosisand uncinariosis in dogs.