GREEN MASS EFFECT OF GALéGA ORIENTALIS AND BROMUS INERMIS ON RATION DIGESTIBILITY AND NUTRIENT UTILIZATION OF LACTATING COWS
The studies found that replacement of alfalfa and bromus inermis grass mixture on bromus inermis and galega orientalis grass mixture in dairy cows rations green mass increases ration digestibility and utilization of nutrients, improves the nitrogen, calcium and phosphorus metabolism in the body of animals. Experimental groups of cows were superior to the control group on digestibility of dry matter, respectively, 2.83 and 5.72%, organic - 2.41 and 5.76%, crude protein - 2.11 and 4.31%, crude fat - 2.52 and 5.48%, crude fiber - 4.12 and 6.31% and nitrogen-free extractive substances - 3.13 and 5.38%. Animals received 30 kg of bromus inermis and galega orientalis grass mixture had an advantage on nutrients digestibility coefficients over those who received 25 kg of grass mixtures, respectively, 2.89; 3.35; 2.20; 2.96; 2.19 and 2.25%. Nitrogen utilization from the amount taken was higher in experimental groups than in control, respectively, 3.62 and 7.07%.