Authors: E. A. DORONIN-DORGELINSKIY, candidate of veterinary sciences, associate professor, T. N. SIVKOVA, doctor of biology, associate professor, Perm State Agricultural and Technological University (23 Petropavlovskaya Str., 614990, Perm; phone: 8 905 863-01-66; е-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.)
Keywords: pathomorphology, beef, muscles, sarcocystiasis.
Abstract: A morphological study of 62 samples of beef obtained at the slaughterhouses and laboratories from Perm and the Perm district of the Perm region at the period April – May 2017 was carried out. According to the results of visual inspection of the muscle tissues had not pathological changes characteristic of invasive disease. However, the results of histological examination of beef were 100 % Sarcocystis spp. infection. According to the morphological characteristics of the cysts correspond with the description of Sarcocystis bovicanis (S. cruzi). Histological examination revealed degeneration and disintegration of the sarcolemma adjacent to the cysts muscle fibers, as well as in some cases of focal infiltrates of cells of the lympho-macrophage series, evidence of immunogenic effects of the pathogen. Thus, in the muscles of cattle in defeat sarcocystosis occur degenerative changes are a sign of toxic reactions. The presence of immunocompetent cells at the periphery of myocytes indicates the development of immune cellular reactions, especially near the affected muscle fibers. The detected changes result in lower quality meat products.
