PARASITOSIS OF YOUNG CATTLE IN FARMS OF THE CENTRAL AND URAL REGIONS OF RUSSIA

Abstract

Distribution of the main intestinal parasitic protozoa of young cattle: ameri (Eimeria spp.), Cryptosporidium (Criptosporidium parvum), buxtonell (Buxtonella sulcata) was studied in 2016–2018 in cattle farms of the Central and Ural regions of Russia. With the interrogative methods of Fülleborn and Darling and successive washes in different seasons of the year, we examined 20 animals of different age groups. Studies conducted in different regions of Russia showed that calves up to 6 months of age were infected with Eimeria from 20 to 45%, AI – 720 specimens, in young animals up to 1 year of age, EI of the eymeria invasion ranged from 40–52%, AI – 1305 specimens, buxtonella EI from 26 to 32% in young animals up to 2 years of age, EI of Eimeria invasion ranged from 30 to 36%, AI – 916 specimens, buxtonella EI – 28–40%. In heifers and cows, the EI of the Eimeric invasion ranged from 16.3 to 23.2%, the AI was 680 specimens, and the buxtonella EI ranged from 25.6 to 37.2%. The results of the research showed that three species of Eimeria parasitize the farms of the Moscow Region in young cattle: Eimeria ellipsoidalis (55%), E. bovis(30%), E. zuernii (15%), and mixed invasion, which was represented by a different combination of them. The most contaminated parasitic simplest invasive elements of the environment in premises for keeping animals are the floor and walls of cells, machine tools.