The article contains information on the state of the processes of lipid peroxidation (LPO) in fresh cows under the influence of stress reaction caused by labor and the beginning of the lactation period. To reduce oxidative stress in the body of fresh cows, antioxidants were used in the form of preparations “E-selenium” and “Butofan”. The aim of the research was to determine the effect of vitamin-containing preparations “E-selenium” and “Butofan” on the productivity of fresh cows, the quality of milk and butter, made from it. The studies were carried out during the winter-stall period on one of the farms of Ryazan district of Ryazan region and involved 12 fresh black-and-white cows aged 4 years. The control group of animals was intact. As a result of the investigations, it was found that due to the action of the above preparations, which have antioxidant properties, the productivity parameters in the experimental groups of animals were higher compared to the control group, because they had an inhibiting effect on lipid peroxidation processes in the organism and activated the work of its own antioxidant system.

The article discusses the relevance of analyzing the level of biological risks from the point of view of activities of enterprises of the agro-industrial complex. Agro-industrial complex enterprises deal with living organisms (plants and animals), characterized by a development cycle closely related to natural and climatic conditions, and subordination to the biological laws of the functioning of living things. This is the reason for risks being specific only to this industry (biological, climatic, risks of seasonality of production, etc.). Biological risks are the undisputed leaders in this list, since they pose a threat to the life and health of people when using the products of agricultural enterprises. The authors consider biological threats of human infection when eating livestock products, since (unlike plants) humans and animals have a common group of diseases called zooanthroponosis. The analysis of studies and opinions of specialists in veterinary and sanitary examination, microbiology, epizootology, infectious diseases and epidemiology allowed to compile a list of biological risk factors, identify criteria for assessing the degree of risk, and conduct their quantitative and qualitative assessment at the regional level.

The article presents the results of the analysis of quality and safety indicators in the production of halal meat products using the example of beef. A fairly large-scale production of Halal meat has been organized in our country. Despite the 5-10% price increase, these products are in great demand not only among Muslims, but also among consumers who prefer high-quality and environmentally friendly products. Beef is characterized by a high protein content (in particular, myosin and myoglobin). Beef meat contains B vitamins, vitamin B12 is especially important, which the body receives only from animal food. Beef is a supplier of high quality protein essential for building cells, especially muscle cells. Balanced composition of amino acids, which includes arginine and glutamine. In the course of the research, the authors analyzed the veterinary and sanitary characteristics of the production of halal meat products and carried out its veterinary and sanitary assessment. The beef samples were examined by us for compliance with the requirements of TR CU 021/2011 "On food safety" and TR CU 034/2013 "On the safety of meat and meat products" in terms of microbiological and physical and chemical safety. Based on the results of the analysis of the content of toxic elements, physicochemical and microbiological studies, it was concluded that the indicators of both samples meet the requirements of regulatory documents, do not contain toxic elements and are safe. Organoleptic studies showed that both samples under study are of excellent quality category and appearance, however, the consistency of sample 1 is denser and more elastic, the smell and taste of both samples is characteristic of this type of meat, however, the broth obtained from sample 1 is more aromatic and has a bright, rich meat taste. In this connection, according to the results of the study, the authors concluded that sample 1 ("halal beef") has higher quality indicators than sample 2 (beef obtained in the classical way).

The article presents analytical data for assessing cyclical trends in morbidity and mortality, correlation analysis of morbidity due to zooanthroponoses, and trend analysis of biological threats based on statistical data for the Ryazan region from 2017 to 2021. This analysis made it possible to compile a matrix of pairwise Pearson correlation coefficients for infectious and parasitic diseases of animals and humans, which are zooanthroponoses, and to reveal a correlation between the incidence of humans and animals.The highest score rank (2.208) and correlation coefficient (0.88) are typical for tuberculosis caused by mycobacteria. This disease is zooanthroponosis and is particularly dangerous. The second place of the trend is occupied by bacteria of the genus Salmonella (point rank — 1.362, correlation coefficient — 0.75). The third, fourth and fifth places of the trend are occupied by acute intestinal infections caused by Staphylococcus aureus (score rank —0.577, correlation coefficient — 0.79), Escherichia coliform bacteria (score rank—0.397, correlation coefficient — 0.82), Enterobacter, Citrobacter, Klebsiella (score rank — 0.308, correlation coefficient — 0.87).

The article presents the results of experimental studies to establish the effect of the preparation prepared from the infusion of berries on the hematological parameters of rabbits. The influence of different volumes of the preparation on some hematological parameters and nonspecific immunity of rabbits was determined. The experiment was carried out in the vivarium of the Faculty of Veterinary Medicine and Biotechnology of the Ryazan State Agrotechnological University named after P.A. Kostychev. The experiment involved male rabbits of the Californian breed in the amount of 50 heads, divided into 5 groups: control and 4 experimental. The animals of the control group were intact, the experimental ones received an orally infusion of raspberries of the same concentration, but as a result of the research it was found that the volume of the infusion of berries of berries is of decisive importance for the processes of hematopoiesis in the body of rabbits. Application of dosages of 15 and 20 ml per head per day. It has been proven that this is the best drug that promotes the activation of erythropoiesis and an increase in the formation of hemoglobin in the body of rabbits in a shorter time compared with the use of infusion of smaller volumes. The same volumes are administered to rabbits for 30 years. Days had a positive effect on the increase in leukocytes in the blood, which indicated an increase in the immune status of rabbits, since these cells performed a protective function.