Ufa, Ufa, Russian Federation
Ufa, Ufa, Russian Federation
The purpose of the research is improving the efficiency of energy utilization of diets for Black-motley breed bull-calves through the use of probiotic drug Biogaran.The experiment was conducted in SPK-collective farm «Heroi» Chekmagushevsky district in the Republic of Bashkortostan. Group formation was carried out according to the principle of analogues taking into account breed, sex, age and body weight. 4 groups were formed of 6-month-old bull-calves of Black-motley breed and control (I) and 3 experimental (II, III and IV) for 15 heads each. In the diets of young II, III and IV groups in addition to the basic diet were injected with 3.5 g; 7.0 and 10.0 g of probiotic feed additive Biodarin per 1 kg of concentrated feed. Animals treated with the drug at a dose of 7.0 g/kg of concentrated feed, in comparison with their peers of the control group better digested dry matter by 1,64% (P<0.01), organic – 1,25% (P<0.05), crude protein – 2.97% (P<0.05), crude fiber – 1,53% (P<0.05) and BEV – 2.64% (P<0.05). Using in feed rations of large horned livestock young growth feed additive «Biodarin» has positive effect for energy metabolism: energy interchancing increased by 1.02-1.79 per cent, the energy gain is increased by 10.96-of 19.72%.
calves, digestibility, nutrients, energy, diets
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