This work is devoted to the microbiological analysis of meat and by-products of hazel grouse in the conditions of the Republic of Sakha (Yakutia), depending on the seasons. The material for the study was the carcasses and internal organs of hazel grouses, obtained in hunting brigades and hunters during the spring-autumn shooting of birds in the Republic of Sakha (Yakutia). Samples of muscle tissue, lungs, heart, liver, kidneys, the contents of the stomach and intestines of hazel grouses were taken from 29 birds for the isolation of E.coli, salmonella, staphylococci and Cl. perfringens. According to the research results, it was found that the intensity of bacterial contamination depends on the season, that the greatest contamination of E. coli, salmonella, staphylococci occurs in the spring, made it possible to determine the species composition of the microflora of the organs and tissues of hazel grouse by the seasons of the year.

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This article presents the results of the veterinary-sanitary inspection and research of upland game carcasses. During the primary inspection, we paid special attention to the presence of abnormal changes typical of infectious and invasive diseases, based on the standard rules for inspecting the meat of domestic fowl. We also took into consideration the nature of injuries, dehematizing levels, product quality, and freshness. The preservation of the upland game meat depends not only on the rapid removal of intestines from carcasses but also on the type and area of injuries, and the level of dehematization. The study matter for this research is represented by the carcasses of upland game, namely their muscle tissues. During the research, we used organoleptic, physical, chemical, bacteriological, pathomorphological, and mathematic methods. During the organoleptic tests, the highest appraisal of upland game products on a 9-point scale was within the range of 8.4-9, which complies with the standards. The content of amino-ammonia nitrogen was 0.78±0.01. The primary protein breakdown product test showed that the fresh meat produced clear stock without flaking. The fat acidity value test showed an increase from 0.8±0.01 to 3.9±0.01 mg/KOH; the fat peroxide value increased from 0.01±0.01 to 0.74±0.5% J. The pH value varied from 5.99±1.79 for fresh meat to 7.70±0.01 for stale upland game meat. The microbiological tests did not find any pathogenic germs, including salmonella and Listeriamonocytogenes bacteria.

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The article discussesthe current problem of food quality control, the content ofstrontium-90 and cesium - 137 in the body of wild game birds-wild game inhabiting the territory of the Republic of Sakha (Yakutia). The object for research were carcasses of wild game 3 species: black grouse; partridge; grouse. Radiation safety of wild game as a food product was determined by its compliance with permissible levels of specific activity of radionuclides, in particular 137Cs and 90Sr. These indicators are regulated by TR CU 021/2011 “on food safety”. According to the long-term (2013-2017) results of our studies 137Cs and 90Sr in carcasses of wild game, Northern, Central, Vilyuisk and southern ecological zones of the Republic of Sakha (Yakutia) was not found to exceed the permissible concentration. As a result of our research, the following results were obtained: the content of 137Cs and 90Sr in grouse carcasses: southern - 70.54±0.71 and 26.43±2.54; Central-64.81±0.18 and 20.89±1.95; Vilyuiskaya - 73.12±0.01 and 28.48±1.18. Black grouse does not live in the Northern ecological zone. The results of the study of partridges are as follows: South-69.04±2.95 and 28.17±0.05; Central - 58,69±2,18 19,87 and±0,39; Vilyui - 70,84±1.55 and 27,87±0,04; North - 28,17±0.05 and of 10.83±0,50. In the study of grouse is established: the content of radionuclides in the southern zone - 71,24±1,95; Central was 60.05±0.01 and of 21.11±1,95; Vilyui - 71,11±0.55 and of 11.47±0,32. According to the results of our studies, the data of exceeding the maximum concentration of 137Cs and 90Sr in the carcasses of wild game in all ecological zones of Yakutia were not established.