Productivity of the ewe's lambs Romanov breed when using a complex of mineral and vitamin supplements in diets

Abstract

Relevance. It is known that the mineral composition of the feeds of the Republic of Bashkortostan used in animal diets, in terms of calcium, phosphorus, magnesium, copper, cobalt and sulfur, does not meet the needs of animals. The deficiency of minerals is especially high in growing young animals.In this regard, the development and scientific justification of the use of a complex mineral and vitamin feed additive (hereinafter CMVFA) in the diets of growing young sheep, which stimulate digestion and digestibility of nutrients in the diet, thereby increasing productivity, is of particular importance.Methods. To study the effectiveness of feeding KMVKD in the diets of the Romanov breed yarok on the indicators of body weight gain in peasant farming conditions, 4 groups of yarok were formed on the principle of pairs of analogues (10 heads each). Yarki of the control group received in addition to the main diet at the rate of 20 g of monocalcium phosphate and 15 g of premix per head (P81-1-89). The yarks of the experimental groups of KMVKD were introduced into the composition of crushed grain mixtures: made according to recipes No. 1 — for the first, No. 2 — for the second, No. 3 — for the third (35 g per head per day).Results. With a small difference in the intake of substances between the groups, the use of UMVD of 35 g per head per day had a significant impact on body weight gain. During the experiment period, the average daily weight gain in animals of the control group was 165 g, and in the experimental groups, respectively, 174.75 g, 183.52 g and 190.68 g, or more by 5.91%, 11.22% and 15.56% compared with the control. The level of profitability of production in the experimental groups increased by 10.60%, 16.03% and 20.54% compared with peers from the control group.