Species composition and peculiarities of the course of dog parasitoses on the territory of the city of Poltava

Abstract

Dogs are parasitized by a significant number of helminth species, the largest part of which in the sexually mature stage is localized in the gastrointestinal tract of animals. These helminths cause significant damage to the health of dogs and contaminate environmental objects, contributing to the spread of infestations. The work aimed to establish the species composition of the causative agents of invasions that parasitize dogs in the city of Poltava's territory and to establish their course's peculiarities. It was found that dogs in Poltava are infected with pathogens Dipylidium caninum, Toxocara canis, Trichuris vulpis, Uncinaria stenocephala, Cystoisospora canis, and Dirofilaria sp. The average extensity of invasions by parasitoses was 28.4 %. The rates of infestation of dogs were: for trichurosis – 20.18 %, for toxocarosis – 12.84 %, for cystoisosporosis – 11.47 %, for uncinariosis – 11.01 %, for dirofilariasis – 6.42 %, for dipylidiasis – 2.29 %. It was established that parasitosis in 77.42 % of infected dogs took the form of mixinvasions, where two-component associations were registered in 41.94 % of dogs, three-component – in 22.58 %, four-component – in 12.90 %. Monoinvasions were detected in 22.58 % of infected dogs. They were represented by dirofilariasis (8.06 %), cystoisosporosis (4.83 %), toxocariasis (3.23 %), trichurosis (3.23 %) and dipylidiasis (3.23 %) infestations. A total of 14 types of mixinvasions were identified. Two-component associations are represented by seven combinations of parasites, three-component associations by four combinations, and four-component associations by three combinations. Most often, simultaneous parasitism in the body of dogs was diagnosed with trichurises and uncinaries (16.67 %), trichurises and cystoisospores (12.5 %), trichurises, uncinaries and toxocares (12.5 %), toxocares and trichurises (10.42 %), dipylidies, trichurises and dirofilaries (10.42 %), trichurises, toxocares, cystoisospores and uncinaries (10.42 %). The conducted studies allow taking into account the obtained data when diagnosing parasitosis in dogs, as well as applying effective treatment and preventive measures, taking into account the associative course of cestodoses, nematodoses and protozoans.