Agrarian Science and Food Technologies

Radchikov V.F., Doctor of Agricultural Science, Professor
Tsai V.P., Сandidate of Аgricultural Science, Associate Professor
Besarab G.V., Research Associate
Republican Unitary Enterprise «Scientific Practical Centre of Belarus National Academy of Sciences on Animal Breeding»
Golubenko T.L., Сandidate of Аgricultural Science, Associate Professor
Vinnytsia National Agrarian University

As a result of research on efficiency of biologically active supplement «Kormomiks» for young cattle feeding, it was determined that animals of experimental group significantly exceeded their coevals from the control group in respect of digestibility of dry and organic matter by 4.8 and 4.0 p.p., respectively, BEV – by 3.3, fat – by 0.7, protein – by 3.7, fiber – by 6.8 p.p., which indicates a high activity of cellulolytic enzymes ensuring increase of fiber digestibility.
The difference in nitrogen consumption with feed is insignificant, 3.5 g higher in the experimental one. Excretion with feces is 9% lower in the experimental one; as a result, 3.5% more of the element is deposited in the animal body. When feeding Kormomiks, there were also differences noted on the use of calcium and phosphorus by experimental steers. Thus, the animals of experimental group had a 7% less consumption, however, its intake from the feed was 16% higher than that of the control group steers, as a result, the deposit made 20.0% compared to 11.3% in the control one.
The same trend was noted for the phosphorus use. However, its intake with feed was slightly higher with the experimental animals, and excretion with feces was lower as a result, with nearly the same excretion of phosphorus in the urine, it was deposited in the body by 36.2% more.
The blood analysis showed a positive effect of the supplement on hemoglobin content, which turned out to be 7.7% higher within the physiological norm indicating more intense metabolic processes occurring in the body of experimental steers. A 6.3% increase in the number of red blood cells and 14.7% decrease in white blood cells were also determined.
Based on the control weighings, the body weight was determined and performance of experimental group steers was calculated.
Research have shown that in terms of weight gain energy, experimental group turned out to be 7.4% higher than the control one, the same trend was in terms of metabolizable energy costs by 1 MJ in weight gain only to a lesser extent – 4.3% lower. Feed costs also turned out to be 2.5% lower in young animals that received feed containing biologically active supplement “Kormomiks”.
The cost of the daily diet was higher for the young animals in the experimental group, but the cost price of weight gain for them due to the greater performance of steers decreased by 3.3%.

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