The use of balancing additives in the rations of young small ruminants and cattle

Abstract

The purpose of the research was to study the feasibility of using different balancing feed additives in the rations of young ruminants and cattle. In order to achieve this purpose, two scientific and farm experiments were conducted on the development and use of balancing additives in the rations of young ruminants and cattle. The first experiment was carried out in the Volgograd region on the herd of sheep of Volgograd breed in the IE FARM Kushkalova A. B., the second was carried out in in the Voronezh region on heifers of Holstein breed on the basis of the Korshevo livestock complex OOO EkoNivaAgro. In the first experiment the sheep of the control group were fed a general economic ration, the animals of the 1st experimental group were input with a mineral balancing feed additive instead of the mineral part of the ration recipe No. 1, the 2nd experimental group with the recipe No. 2 and the 3rd experimental group with the recipe No. 3. In the second experiment heifers from the 14th day of life received premix P-62–1 as part of the compound feed, the young cattle of the experimental group as part of the starter feed were replaced with premix P-62-1 with MegamixNoris. After 6 months, the animals of the control group received premix P-63-1 as part of the ration, and the heifers of experimental group received premix MegamixVitulaOpti. The inclusion of the mineral complex in the ration of sheep of the 1st, 2nd and 3rd experimental groups contributed to an increase in the digestibility coefficients. Thus, the digestibility of dry matter was higher than that of analogues from the control by 1,03; 0,59 and 0,21 abs.%, organic matter by 1,95; 1,80 and 1,59 abs.%, crude protein by 1,15; 0,97 and 0,84 abs.%, crude fiber by 1,09; 0,62 and 0,23 abs.%. The nitrogen digestibility in them was higher from the taken by 1,12, 0,79 and 0,63 abs.% and from the digested by 1,18, 0,73 and 0,61 abs.%. The young sheep of the experimental groups significantly exceeded the analogues from the control in live weight at the age of 8 months by 1,82–6,93 %. The input of the tested premixes into the ration of heifers allowed to increase the digestibility of dry matter by 1,29 abs.%, organic matter by 2,26 abs.%, crude protein by 2,54 abs.%, crude fat by 4,18 abs.%, crude fiber by 3,15 abs.%, nitrogen-free extractive substances by 4,16 abs.%. Nitrogen assimilation from the intake increased by 2,18 abs.%. At the same time, the live weight of heifers was increased by 10,37 % compared to analogues from the control group.