Efficiency of combined fodder use with reduced amount of grain in feeding lactating cows

The assessment of the need to include combined fodder with reduced amount grain in diet dairy cows by replacing it non-grain components (wheat bran, protected fat) is given. In scientific and economic experiment on 2 groups 12 heads each, influence 40% weight palatability feed, milk yield, composition, nutrients' digestion coefficients, biochemical blood level production profitability was studied. Reducing proportion total number concentrate's allows increase 4% fat yield 0.8% while increasing protein 0.02 — 0.04%. preference for consumption per 1 kg experimental group - 8.67 MJ ME; 337 g fodder. Reduction composition contributed an 12.3%.