Animal parasites cause significant economic damage to pig farming. Of the parasitic diseases common to humans and animals, trichinosis is the most dangerous. The purpose of this work is to study the ecological and epizootological distribution of the main helminths of pigs in farms in the Altai Krai. Helminthoscopic studies to detect the spread of ascaris, metastrongyls, esophagostomas and trichocephalians were carried out in the same farms and in the same pigs. The viability of the detected ascaris eggs was determined bytheir appearance d, as well as by fculturing the eggs in a wet chamber in a thermostat at a temperature of 25-30C for 15-20 days. In pigs in the Altai Krai, according to CHA (complete helminthological autopsy) data, 3 types of metastrongyls are parasitized in the lungs: M. salmi, M. elongatus and M. pudentotectus. The dominant species is M. elongatus. The conducted studies showed that the objects of the external environment were strongly infected with ascaris eggs. According to the practical significance of pig nematodes in the Altai Krai, ascaris, metastrongyls, trichocephalians and trichinella should be considered. Thus, on the basis of the conducted studies, the assessment of helminthiasis of pigs in farms of the Altai Krai is given.

Fascioliasis in cattle continues to cause significant eco-nomic damage to cattle breeding in the Region due to de-creased weight gains of infested young animals and milk yields in cows culled due to liver affected by fascioliasis. On farms infected by liver flukes, there is increased culling of young animals and cows at the beginning of lactation with signs of hepatitis, jaundice, digestive disorders and decreased productivity against the background of general cachexia. The study of fascioliasis epizootology in cattle was carried out at different times of the year. All calves before and after infection were systematically subject to clinical, hematological, biochemical and helminthological studies as well as periodically weighed. The studies were carried out in the morning, usually before feeding the ani-mals. The animals were observed for five months after infection. It was determined that fascioliasis in cattle was found in the forest-steppe zone (the floodplains of the Ob, Charysh and Chumysh rivers). The increased percentage of invasion intensity to 30.2% in the autumn period is asso-ciated with a new wave of fasciole infection in cattle. Ac-cording to the findings of post-mortem examination, in win-ter, spring and summer, only imaginal fascioles were found. Thus, in the forest-steppe zone of the Altai Region, all age groups of cattle were affected by fascioles with prevalence of 10.4% which ranged from 8.7% to 13.5%. In autumn, imaginal and young fascioles were found

No abstract

Most blood parasitoses are transmitted by means of carriers - ticks or insects, which bodies undergo certain development stages or transmission is carried out mechanically. Dirofilariasis is a zoonotic disease of animals and humans carried by mosquitoes. The reasons for dirofilariasis spread are the unrestricted movement of animals from one region to another. To diagnose dirofilariasis, a microscopy method of a fresh blood drop was used. Diagnosis for babesiosis in animals was made based on clinical traits and results of microscopic examination of peripheral blood smears stained according to Romanovsky-Gimza. The study of the ixodic ticks’ prevalence as distribution sources of dog babesiosis was carried out in Barnaul in different parts of the city. The spring rise of babesiosis begins in late April and ends at the end of May, the summer period June-July is characterized by a low incidence rate. The autumn rise is from August to October, i.e., it coincides with ticks’ activity during this period. The incidence of ticks in Barnaul is not uniform. The largest range of ticks’ distribution is found in the highland part of the city.