Effectiveness of known methods of coproovoscopy for myxtinvasions of the digestive tract of dogs

Abstract

Urbanization processes are taking place in all regions of the planet. Large and small cities, megacities are being created, which leads to the formation of an urban ecosystem with unique abiotic and biotic factors. All this has a significant impact on the fauna and inhabitants of the urban environment. Special attention is paid to the formation of parasite fauna in domestic dogs - typical representatives of the urban environment of a metropolis, among which a significant proportion are helminthiasis of the digestive tract, which have medical, sanitary and veterinary significance. Lifetime diagnostics of these invasions is an important element of practical veterinary activity, the success of which depends on the correct choice and competent application of appropriate laboratory diagnostic methods. The purpose of the research is to determine the effectiveness of known coproovoscopic flotation methods in the associative course of trichurises, toxocares and dipylidies. The research was conducted in the conditions of the Private Veterinary Clinic "Dovira" (Kharkiv) and the Laboratory of Parasitology of the Poltava State Agrarian University (Poltava). The flotation methods of Kotelnikov-Khrenov (with a solution of ammonium nitrate), Sorokova (with a combined solution of calcium and ammonium nitrate), Petrenko (with a combined solution of calcium nitrate, sugar and sodium chloride), Melnychuk (with a combined solution of calcium nitrate and sodium chloride) were tested in the process of diagnosing parasitocenosis caused by parasitization of trichurises, toxocares and dipylidies. It was established that the tested methods of coproovoscopy detected eggs of trichurises, toxocares and cocoons of dipylidies with different indicators of invasion intensity. The most sensitive method for the simultaneous detection of trichurises, toxocares and dipylidies, regardless of the exposures of coproprobes, was the Melnychuk’s method, which exceeded the effectiveness of the Kotelnikov-Khrenov’s methods by 21.7–73.1 %, 21.9 % and 50.0–54.4 %; Sorokova’s by 21.2–30.9 % and 32.4–49.0 %; Petrenko’s by 27.6 % and 37.2–40.4 %, respectively. The results obtained allow us to recommend the flotation method with a combined solution of calcium nitrate and sodium chloride for effective coproovoscopic diagnostics of the associative course of trichurosis, toxocarosis and dipylidiosis in dogs.