Prusova G. Grounding technological ways of use of calcium chloride for growing and fattening of bulls

The object of the examination. Experimental substantiation influence of technological techniques and levels of using calcium chloride in the composition of the ration for the bulls’ growth and development , meat productivity, quality, hematology, clinical indicators, natural resistance, digestibility of nutrients feed conversion ability, mineral composition of blood and hair , amino acid composition of proteins and fatty acids in meat, economic efficiency. The subject of the examination. Ukrainian bulls black and white dairy and combined simmental breeds of all ages, calcium chloride, premix, feed grade granular-starter with the introduction CaCl2, samples of feed, blood, meat, internal organs, laboratory mice. Methods. Given tasks solved with using complex of analytical, zootechnical, clinical chemical, hematological, toxicological and statistical research methods. Scientific novelty of the results. First in Ukraine scientifically grounded input efficiency in the manufacturing process of growing and fattening bulls new techniques using calcium chloride and found regular changes in the formation of their growth, development, slaughter performance, meat production, the biological worth of beef protein and energy conversion of feed into products amino acid, fatty acid composition of meat, assimilation of nutrients feed metabolism of nitrogen, calcium and phosphorus in the body and profitability of the production. The practical significance of the results. Materials research is the basis for the improvement of production technology in beef breeding and fattening calves by the use of calcium chloride, which facilitates the identification of additional reserves to increase productivity and improve quality characteristics of beef.