SOME ASPECTS OF EPIZOOTOLOGY OF EQUID STRONGYLATOSIS IN THE NOVOSIBIRSK REGION

The aim of the research was to study the invasiveness of horses with strongylates of the gastrointestinal tract in the Novosibirsk Region. Diagnostic methods generally accepted in helminthology were used in the work, such as the helminthovoscopic flotation method by Fulleborn and the helmintholarvoscopic method by BermanOrlov. Material for our study, namely, feaces samples, were collected at the farms of certain districts of the Novosibirsk Region and private sports stables in Novosibirsk which differ in the technology of keeping horses. The wide distribution of equid helminthiases has been established. The variety of helminths in the gastrointestinal tract of horses is represented by helminths of the Nematoda class, which includes 2 suborders – Strongylata (families Trichonematidae and Strongylidae) and Ascaridata (Parascaris equorum). Parasitoses in horses of the stable and stablepasture management occur in the form of mixtinvasions with strongylates prevailing; Parascaris equorum act as subdominants. The average number of animals infected with strongylates at the farms of the Novosibirsk Region where the stable and pasture maintenance of horses is practiced amounted to 74.9%, respectively, with an average number of eggs 739.9 per gram of feces. In urban conditions, the invasiveness of horses by strongylates is 2 times lower and recorded at 33.3%. Trichonematids are the basis of the strongylate community, however, the infection rate of one-hoofed animals in Novosibirsk is also 2 times lower than at the farms of the Novosibirsk Region and amounts to 25.8%.