Abstract
Over the past 5 years, research has been carried out in natural biocenosis on the stone marten (Martes foina) infected with the pathogen of trichinellosis in Central Russia. Biological material for research was collected in hunting farms, reserves and "green zones" of the Central Region of Russia (the Vladimir, Moscow, Nizhny Novgorod, Tula, Ryazan, Oryol and Bryansk regions) during the opening of amateur sports hunting for fur animals from 2017 to 2021. Diagnostics and isolation of helminth larvae from animal muscle tissue samples were performed by the compressor trichinelloscopy and digestion in artificial gastric juice. The degree of host invasion with helminth and invasion intensity were determined. A total of 35 animals were studied. As a result of studies, the infection rate of helminthozoonosis in animals was from 8.3 to 40.0%. The intensity of invasion was recorded between 2 and 39 larvae in 1 g of diaphragm muscle tissue. Trichinella invasion among martens was observed equally in both males and females. The largest percentage of the invasive form of the helminthiasis pathogen occurred in animals older than 2 years. The adverse situation of helminthozoonosis among fur animals was noted in the Ryazan region.
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