PRODUCTIVITY AND METABOLIC PROCESSES IN THE BULL’S ORGANISM WHILE FEDING WITH DIFFERENT AMOUNT OF TRITICALE

The paper presents the results of the research on the use for fattening of young cattle with grain mixtures of different composition, harvested in the Polissya region of Ukraine (%): No. 1 (wheat – 40, lupine – 35, oats – 25), No. 2 (wheat – 20, triticale – 20, lupine – 35, oats – 25), No. 3 (triticale – 40, lupine – 35, oats – 25 ). It has been established that the replacement of grain mixture composed of 20-40% (by weight) of wheat middlings for the same amount of triticale middlings while fattening of bulls affects negatively on their productive capacities (at 8.0-14.8%) and digestibility of essential nutrients in feeds and increases the cost of feed per unit of production (at 8.3-16.7%). The use of grain mixture in composition No. 2 and No. 3 for animal feeding of different dozes of triticale decreased the digestibility of essential nutrients in feed: dry substance at 1.04-3.12% of protein – 1.06-3.31, fat – 7.36-11.00, cellulose – 0.35-3.08 and BER – at 0.54-2.05% in absolute. The postponent of nitrogen in the body of research groups of bulls was less at 26.61-35.45 g or at 29.9-39.8% than in control figures