Golodyuk I. The rationed feeding of heifers and cows at creation of highly productive herds.

Research object: repair heifers, first-calfneteli heifers and cows, feedmixtures, grainsilage. Purpose: Mixtures serving reliable and cheap alternative source of feeding staffs to organize the rationed cattle feeding were carried out and recommended. Energy-saving and ecologically clean technologies are used at their stocking up. Methods: zootechnical, biochemical, statistic (cultivation of received information with the help of variation statistic), economical. Scientific novelty: The chemical content and nutritive value of the mixtures stocked up from cultures grown in the farms of the Western region of Ukraine and given high output of nutrients (68,0-72,0 of feeding units and 7,2-9,4 metric centner of digestible protein from 1 ha) were studied. Using of mixtures (combined silage, grainsilage) as the main feed staff in feeding of repair heifers at their directed growing as well as in the rations of first-calf heifers provide the animals with necessary components of full-valued feeding. These mixturesare both highly nutritive and cheap feeds fattening of which enables to get well developed repair heifers which correspond to the standards of the breed. Introduction of the technology allows to get 4309-4536 kg of milk per a lactation from the first-calf heifers and to increase profitability of its production to 37,6-42,8 %. Degree of introduction: results of experiments were introduced in the private-leasing agricultural enterprise of the name of Ivana Franca Gorohivscogo to the district of the Volinscoi region and were confirmed by responsible acts. Sphere (branch of using): in educational process of the course of feeding of farm animals, and also in production.