Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract Full Text

Helminth fauna in sheep in the valley of the Teberda river.


In connection with the movement of small cattle from one region of the Russian Federation to another with close contact of agricultural ruminants with wild ruminants and carnivores, as well as with the impact of anthropogenic factors, etc. in a certain territory, the parasite fauna of ruminants changes, and pastures in the valley of the Teberda River are no exception. Invasive diseases are a limiting factor in obtaining high-quality mutton. The studies were performed on sheep breeding farms of Muhu, LLC and the private sector located in the Karachay-Cherkess Republic, Karachayevsky District, and Verkhnyaya Teberda Village. In total, 91 samples of faeces were taken from the Karachai sheep of various age and sex groups. Conventional methods were used to diagnose helminthiasis. Helminth fauna in the sheep was represented by one suborder, five genera and three species of nematodes, namely, Strongylata, Protostrongylus, Nematodirus, Bunostomum, Nematodirella, Trichocephalus, Muellerius capillaris, Dictyocaulus filaria and Strongyloides papillosus; one cestode species Moniezia benedeni, and one trematode species Dicrocoelium lanceatum, and protozoa of the genus Eimeria were also identified. Mixed invasions were most often diagnosed in the animals in 52.7%, of which the most common was the suborder Strongylata + genus Eimeria (Infection Prevalence = 8.8%).