One of the trends in meat production is to reduce feed expenditures per unit of live weight gain while simultaneously increasing the growth rate, slaughter yield, muscle yield and reducing the content of internal fat. Reducing the fat content in the carcasses of quails will improve the feed conversion and increase the yield of muscle tissue. One of the ways to reduce the prime-cost of poultry products is the introduction of non-traditional promising feed ingredients. The purpose of the research was to study the use of sorghum grain in feeding quails of meat productivity. The results of the infl uence of complete nutrient-balanced compound feed with the introduction of 10 % sorghum on livestock and economic indicators in the rearing of meat quails have been presented the article. It was found that the live weight of quails in the experimental group increased by 0,46 %, while the average daily feed intake decreased by 4,39 %. Feed expenditures per 1 kg of live weight gain of the experimental group were 5,08 % lower due to better assimilation of feed nutrients. It was found according to the results of physiological (balance) experiment that the digestibility of crude protein increased by 6,92 abs.%, crude fat by 0,73 abs.%, crude fi ber by 0,82 abs.%. It was found when calculating economic indicators that the use of sorghum in compound feed for quails allowed to increase the yield of meat and revenue from its sale by 5,81 %. Despite the increase in the total cost of the feed consumed by the experimental group by 1,43 %, the profi t was received by 58,14 % more. The prime-cost of production of 1 kg of quail meat in the experimental group decreased by 6,20 % compared with the control group.

No abstract

In many countries, quail breeding is organized on a large scale, using modern industrial forms of production. Due to quail farming, the range of dietary foodstuff s necessary for a person is expanding. When rearing and housing this species of poultry, its complete feeding is of particular importance, because health and productivity depend not only on the presence of protein, energy, fats in the compound feed, but also on the amount and ratio of minerals in it, which are a necessary component of any diet. The introduction of beech fl our containing lignocellulose, which relatively recently began to be used for animal feeding as a source of high-quality dietary fiber, can increase the availability of feed nutrients. The purpose of the research was to study the influence of compound feed with the introduction of 1 % beech fl our in different rearing periods on the metabolism and productivity of quails. The results of the influence of complete nutrient-balanced compound feed with beech fl our on zootechnical and economic indicators in the rearing of quailshave been presented in the article. It has been found that expenditures of feed per 1 kg of live weight gain of poultry of the experimental groups were lower by 3,10 % due to better absorption of nutrients. The live weight of quails in the control group at the age of 42 days was 348,25 g and was lower than in the experimental groups by 0,81 and 0,75 %. It has been established that the use of compound feed with 1 % beech fl our is of practical importance in connection with the increase in the productivity of quails and the level of profitability of meat production by 3,2 and 5,5 abs.%.

It is necessary not only to increase the production of poultry products, but also to improve its quality while reducing the prime-cost. One of the solutions to this problem is the use of diff erent feed additives in poultry feeding, made from components of natural origin to meet the needs of poultry, which makes it possible to use for the production of compound feed. Recently, Russia has been paying more and more attention to such a sub-branch of poultry farming as quail farming. This is due to the fact that its products are in demand in the modern market, and production does not require large investments, which makes it possible to receive high incomes from the sale of both meat and eggs in the shortest possible time. The purpose of the research was to study the influence of compound feeds with beech fl our on the productivity of quails of the parent herd. The research was aimed at studying the egg productivity of quails. The results of a study on quails of the parent herd when using compound feeds with 1,0 % beech fl our have been presented in the article. Due to the better assimilation of feed nutrients, the introduction of beech fl our into the structure of the diet helped to increase egg productivity and reduced feed expenditures for products. Thus, when using the developed compound feeds, the average daily feed consumption decreased by 0,71 %. Data from the balance experiment showed that when using compound feed with 1,0 % beech fl our protein digestibility increased by 1,16 abs.%. It has been established that the use of compound feed with the introduction of 1,0 % beech fl our was of practical importance due to an increase in the productivity of quails and reduction in the prime-cost by 1,93 % for production of one hatchable egg.

In recent years, the Russian poultry industry has been successfully developing because of the use of modern crosses, as well as technologies for poultry housing and feeding. The development of quail farming as an eff ective source of dietary and delicacy products is promising. One of the most important conditions for successful breeding of quails is the organization of complete feeding, which involves the use of high-quality protein and energy feed in the diets. It is very important to maximize the use of local raw materials. In this series, a special place is occupied by hulless barley, which is characterized by a reduced content of hard-to-digest fi ber, and therefore has the increased nutritional value for poultry. Therefore, it is of particular relevance to study the input of various varieties of hulless barley in the composition of compound feed for poultry. The purpose of the research was to study the infl uence of compound feed using hulless barley of Siberian selection on the meat productivity of quails. The results of the study on quails using compound feed with 10 % hulless barley have been presented in the article. It has been found that the expenditures of feed per 1 kg of live weight gain in the experimental group of quails have been higher by 3,6 % due to better assimilation of feed nutrients. The live weight of quails in the experimental group has been increased by 4,31 %, while the average daily feed intake has been increased by 0,62 %. Data from the balance experiment have shown that protein digestibility has increased by 1,81 % in the experimental group. It has been found that the use of compound feed with 10 % of hulless barley is of practical signifi cance in relation with the increase in the productivity of quails and the profi tability of meat production by 8,3 %.