It is known that all forms of vital living organisms and the animal productivity is indissoluble connected with the substance exchange and energy, the source of which was and keeps its balans on the nutrients of feeding. That's why the studying of such processes on the different growth stage and development of farm animals taking into consideration the influence of environment are of great importance for scientific substantiate methods of their feeding, keeping technology and reproducing ability. S.Z. Gzhytskyj (1962), F.Y. Palfij (1974), S.V. Stojanovskyj (1975), P.Z. Stolyarchuk (1988), R.J. Kravtsiv (1997) point out the actual studying of these questions in productive animals. The protein nourishment which has own characteristics take the main place in the feeding of ruminants. The last are connected with availability in animal's stomach of simbiotic microflora, which has ability to assimilate a great quantity of nitrogen of amido acids and ammonio salt, synthesizing the protein of their own body. F rom this time it was determined for the first time the synthesis mechanism in rumen of bacteriological protein from the nonprotein nitrogen, it was done the investigations in the direction of finding the most effective and cheap nonprotein nitrogen premix, unhooking speed of which would be rhytmical and their using by microflora - maximum. The serious investigations were done under the fodder animation (hay, cutting) silage souring and sour beet chip by carboammonia salts, the cattle feeding with urea which is in content of combined feeds. But novadays it is not completely elucidate the question of losses in reducing of fodder protein in prestomach of ruminants and the increase of synthesis of bacterial protein by maximum digestion by microflora nonproten forms of nitrogen. The most mass using of urea is of great importance. It is fed mainly by untifical mixture with concentrated fodders; it is often leads to gain of ammonia in the stomach; which often causes toxicosis and the reducing the productivity in ani mals. The changes in gas and energetic exchanges are not taken into consideration. This exchange is the bases of all physiological processes in organizm. Its indices goves the possibility to judge about the adaptation of animal organisms to nontraditional fodder premix and the character of exchange processes when these fodder premix are fed for a long time. Despite the fact that energetic exchange is of great impornance and the source of this exchange is carbohydrates and they are paied less attention when nitrigen premixes are fed. The influence of amidoconcentrated premixes during their long feeding, i.c. during several generation on the exchange processes physiological condition and productivity of different sexes and age groups of the cattle and also on health and reproductive ability of new forn cows and embrio devolopment of their fetus, that's why it should be fed with amidoconcentrated premixes. This supplement in doze 0,5 gr per 1 kg of animal mass in combination with mineral premix (pyridoxine - 0,1 , copper sulphate - 0,005, zinc sulphate - 0,2, iodine potassium - 0,03 gr) in doze 0,335 mg per 1 kg of animal mass. Receiving results of experimental researches and production tests have goven the possibility to elaborate the technology of balanced rations in groving and feeding of young cattle and also in feeding of dairy cows. It is proved that prolonged feeding as supplement to feeding ration with amidoconcentrated supplement and mineral premix has not negative influence on animals health and their reproductive functoin.
