The food crises of the 21st century are characterized by the presence of multidirectional obstacles of a socio-economic and organizational nature in the structure of international relations that function on the problems of maintaining a wide range of export-import supplies of raw and related resources. This situation is caused by the specifics of the international epidemiological situation with the widespread incidence of COVID-19, which leads to the adoption of extraordinary measures to counteract the further aggravation of this situation. Additional factors in the formation of food crises are the complication of the full functioning of natural-artificial aggregates of elements that make up the system of agro-industrial production, formed within the framework of national socio-economic systems, as well as in the structure of international food production and consumer relations. The main means of overcoming these crises consist in the development and further implementation of rational resource-saving technologies for the functioning of the agro-industrial complex with the extraction of various components from the environment, subject to the minimum possible negative impact on it. Thus, the most important ways to overcome the food crises, which are aggravated by the spread of COVID-19, are the sustainable partnership of state management structures and representatives of the private sector of the economy through modern electronic and digital communications in the development of advanced resource-saving technologies for the production of high-quality food, providing comprehensive public-private financial support for the production of high-quality food, as well as comprehensive compliance with epidemiological safety standards.

The urgent need to include biologically active additives in diets including vitamins is primarily due to the fact that their use makes it possible to neutralize the negative effect of certain dietary deviations. Vitamin E is one of the most effective natural antioxidants, which has a versatile effect on metabolism, the role of which in a living organism is difficult to overestimate. Agricultural enterprises of the Russian Federation have imported vitamin E over the past 30 years from abroad due to its absence on the domestic market. State Company “MegaMix” in 2019 developed and mass-produced the feed additive INNOVIT® E 60, which has no analogues in world practice. The purpose of the research was to study the effectiveness of biologically active additives of a new generation in feeding of broiler chickens. INNOVIT® E 60 (registration No. PVR-2-8-20/03540) was used as a test feed additive containing vitamin E-acetate (DL-α-tocopheryl acetate) – 60-63 % as an active substance, as well as an auxiliary substance (carrier) silicon dioxide – up to 100 %. Three groups of broiler chickens were formed for the research: the control group, which received vitamin E as an additive to the main diet (BASF, Germany) in doses of 120, 100, 80 g/t of compound feed, depending on the rearing period, broiler chickens of the 1st experimental group received the additive INNOVIT® E 60 (MegaMix, Russia) in doses of 120, 100, 80 g/t of compound feed and broiler chickens of the 2nd experimental group received the additive INNOVIT® E 60 (MegaMix, Russia) in doses of 100, 80 and 60 g/t of compound feed depending on the age period of broilers rearing. The conducted studies allowed us to establish the effectiveness of the use of the INNOVIT® E 60 feed additive of domestic production in the feeding of broiler chickens in comparison with the imported analog. The optimal dosage of the tested feed additive is 100, 80 and 60 g/t of compound feed depending on the age period of the broiler chickens being reared.

As a result of the researchers found a positive effect of new feed additive on the growth rate, the qualitative indicators of meat fattening. It was found that the effect of feed additives on the productivity increased with increasing doses of feed additives from 100 to 300 g per head. Thus, at the age of 18 months, the bulls of the first experimental group surpassed the control analogues by 3.86, the second – by 5.53 and the third – by 6.42% and the average daily increase by 7.50, 11.63 and 12.45%, respectively. On the basis of the control of the slaughter was revealed that the weight of the paired carcasses in calves from the experimental group was higher than that of peers, not consuming the Supplement, of 5.82-of 9.91%, and their output is up 0.09 to 0.86 percent. At the output of the pulp of the bulls of the experimental groups exceeded the control analogues by 0.72-1.05%. The meat index of their carcasses was, respectively, higher by 0.25-0.36. In average the sample of the flesh of the carcasses of young animals who consumed the study Supplement contained more protein compared with the control 0,28-0,57% fat, respectively 0,68-1,19%. The influence of feed additive and on the content of amino acids in meat was revealed. Thus, essential amino acid tryptophan in the longest muscle of the back of the bulls of the experimental groups was higher by 1.58 – 2.87% and protein quality index-higher by 0.37-0.63. The flesh of the carcasses of calves of the experimental groups had higher technological properties. The moisture-retaining ability of their longest back muscle was higher than that of analogues of the control, by 2,05-2,22%, the fading – lower by 2,04-2,41%. In the body of young cattle, consuming feed additive, protein was postponed more than in control, by 8,67-14,85% and fat – respectively by 11,96-21,44%. The conversion rate of protein they were higher by 0.78-0.86%, energy - respectively 0.67-1.06%. The level of profitability of beef production in the experimental groups was higher than in control at 4, 18-of 1.29%.

Горлов И.Ф., доктор сельскохозяйственных наук, профессор, академик РАН 1,2 Федотова Г.В., доктор экономических наук, доцент 1,2 Сложеникина М.И., доктор биологических наук, профессор 1 Куликовский А.В., научный сотрудник 3 Мосолова Д.А., студентка 1,2 Gorlov I.F., doctor of agricultural sciences, professor, academician of RAS 1,2 Fedotova G.V., doctor of economical sciences, associate professor 1,2 Slozhenkina M.I., doctor of biological sciences, professor 1 Kulikovsky A.V., scientific researcher 3 Mosolova D.A., student Ключевые слова: рынок мяса, животноводство, говядина, питательная ценность, доходы, потребление.

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