Abstract
New scientific data on the modern epizootic situation on helminthoses of sheep of the breed Edilbayevskaya introduced on the territory of Altai region are provided. To study the contamination of animals with helminths, ovoliroscopic methods commonly used in parasitology were applied. In total 889 fecal samples received from sheep of different gender and age groups are investigated. Gelminthocomplex of animals is characterized by a variety. Tapeworms include parasites of the suborder Anoplocephalata, the family Anoplocephalidae, the genus Moniezia (M. brodeni, M. expanza) and the family Avitellinidae of the genus Thysaniezia (Thysaniezia giardi). Roundworms belong to the Strongylata suborder and are represented by 4 genera nematodes – Nematodirus, Ostertagia, Hemonchus, Oesophagostomum. The infection of lambs with helminths, including Nematodirus spp. and Moniezia spp. in 1.6–3.8 times more than at adult animals also makes respectively 48.1; 42.9 and 15.8%. A distinction of the sheep hermitage of the breed Edilbaevskaya is the low level of infection of animals with strangulates of the gastrointestinal tract, including esophagostomies (0.19%), ostertagies (1.3%), and hemones (0.2%). The dominating and subdominating components of helminthocomplex are Nematodirus spp. and Moniezia spp. For the first time the Skrjabinema ovis is registered in territory of Altai region.
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