Abstract
A number of domestic and wild animals have been infected with eimeria in Kazakhstan. As a result, horses (Equus caballus Linnaeus, 1758) have one species of eimeria new to science (Protozoa, Apicomplexa), kulans (Equus hemionus Pallas, 1775) - 2, beavers (Castor fiber Linnaeus, 1758) – 3, saigas (Saiga tatarica Linnaeus, 1766) – 1, argali saryarka (Ovis ammon collium Linnaeus, 1758) – 4, steppe wild sheep (Ovis orientalis Gmelin, 1774) – 7, Bukhara deer (Cervus elaphus Bactrianus lydekker, 1900) – 3 species. Oocysts secreted by feces from the host’s body cannot infect sensitive animals. In the external environment, they must undergo a certain development process, during which they acquire the ability to infect. In the presence of certain conditions in the external environment (heat, moisture and oxygen), the cytoplasm of the oocyte separates from the shell, contracts, acquires a spherical shape and begins to divide into four sporoblasts. A dense shell forms around each sporoblast, resulting in the formation of four sporocysts. Two sporozoites are formed in each sporocyst, and sporocyst-spores. This ends the exogenous period of the development of emeria-sporogonia. After that, the oocysts become invasive and infect sensitive animals when they become infected. Morphological signs of eimeria are described. The timing of sporulation is indicated. The number of oocytes, sporocysts and sporozoites is given.
Published Version
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