The purpose of this paper was to study the epizootic process of equine paraskaridosis in the conditions of the Central Altai. The research was conducted in 4 administrative districts of the natural-geographical province. Fecal samples were examined by the methods generally accepted in parasitology. After analyzing the results of ovolarvoscopic studies we can say that nematodes of the suborder Strongylata (IP = 87.8) prevail with EI indicators of 79.4–100.0% in the structure of the helminth complex of the gastrointestinal tract of horses in the territory of all administrative districts. However, an important role in the formation of invasive pathology is played by paraskaridosis, the pathogens of which are a subdominant element in the helminthocomplex (IP 6.9). This disease is almost ubiquitous. The average infestation of horses with nematodes Parascaris equorum of the suborder Ascaridata is 13.0%, with the variability of EI indicators from 7.2 to 22.1%. The maximum infestation was registered in foals, then there is a tendency to reduce the infestation of animals with age. The seasonal manifestation of paraskaridosis is characterized by the greatest infection of animals in the autumn period. Heterogeneity in the infestation of horses with paraskarids in the context of administrative regions is due to the natural and climatic features and orographic diversity of mountain landscapes and the established ecosystems characteristic of them.
The Early Upper Palaeolithic bone industry of the Central Altai, Russia: new evidence from the Kara-Bom site
