Sarkocystosis of Boars and Wild Ducks in the North of the Non-Black Earth Area

Abstract

Sarcocystosis (sarkosporidiosis) is a widespread, but insufficiently studied, protozoal disease of farm animals and humans, wild animals and birds. Sarcocystosis was not registered in wild animals in the territory of the Kirov region.Samples from 218 carcasses of wild boars caught in various parts of the Kirov region from 2011 to 2019 were examined for spontaneous defeat by sarcocystosis. Samples were taken from various muscle groups and the heart. They were examined by visual inspection methods and using a compressor. In the selection of muscle samples, we took into account the area, age, sex, fatness of the animal.In a study of 191 boar carcasses in 2012–2017, we did not identify sarcocysts in the muscles and heart. Sarcocistosis in wild boars in the north of the Non-Black Earth Region was registered in the last hunting season of 2018–2019 in the study of 27 carcas boars. The extensiveness of invasion was 25,9%, the intensity of invasion is low – 4,3±1,3 (1–14) cysts in the compressor. The length of the sarcocysts is 0,5–1,36 (0,88±0,1) mm, the width is 0,12–0,18 (0,15±0,01) mm. The infection rate of young boars was 57,1%.Sarcocystosis in wild duck mallards was registered by us in May 2011. Cysts were 4x1 mm, white colored. The intensity of invasion in wild ducks was high. We found Sarcocystis rileyi in wild ducks from the Nizhny Novgorod and Vologda regions.