Domestic and wild animals meattrichinelloscopy and slaughter products veterinary and sanitary assessment

The aim of the study is to examine the meat of domestic and wild animals for trichinellosis using the compressor trichinelloscopy method and conduct a veterinary and sanitary assessment of slaughter products. The study was carried out in the laboratory of the Department of Epizootology, Microbiology, Parasitology and Veterinary and Sanitary Expertise of the Institute of Applied Biotechnology and Veterinary Medicine of the Federal State Budgetary Educational Institution of Higher Education Krasnoyarsk State Agrarian University in 2021-2023. The object of the study was sections of striated muscle tissue of pigs, bears and badgers - 25 samples delivered from different regions of the Krasnoyarsk Region, as well as from the Republics of Khakassia and Tyva. For trichinelloscopy, 96 thin sections were prepared from the intercostal, chewing and cervical muscles of each animal carcass. The sections were placed in a compressorium, crushed and examined under a TP-1 projection trichinelloscope. Veterinary and sanitary assessment of meat was carried out in accordance with the "Rules for veterinary inspection of slaughter animals and veterinary and sanitary examination of meat and meat products" (1988) and Order of the Ministry of Agriculture of the Russian Federation № 269 "On approval of the Veterinary rules for the slaughter of animals and the Veterinary rules for the appointment and conduct of veterinary and sanitary examination of meat and products of slaughter (harvesting) of animals intended for processing and (or) sale" (2022). Trichinelloscopy of sections from 25 samples of meat from domestic and wild animals revealed trichinella larvae in nine samples (36.0 % of infested samples): in bear meat - in three samples out of five studied (60.0 % of infested samples) and in badger meat - in six samples out of seven studied (85.7 % of infested samples). The meat of bears and badgers infected with trichinella larvae came from the Balakhtinsky, Bolshemurtinsky, Minusinsky, Kansky Districts of the Krasnoyarsk Region and the Republic of Tuva. No trichinella larvae were found in pork (13 samples). According to the current Veterinary Rules (2022), when trichinellosis is detected, meat and slaughter products of animals are sent for destruction.