Milk productivity of cows in the enterprises of the Sverdlovsk region for 2014 amounted 7386 kg of milk. One of the leading enterprises of the region in milk production is the collective farm Ural mountains of Irbitsky district, where each cow produced 8576 kg of milk with mass fraction of fat 3,90% and the mass fraction of protein – 3,15%. The high productivity of cows is ensured, first of all, the purposeful rearing of young animals and balanced feeding of all physiological groups of animals. Proper rearing of replacement heifers on the background of balanced feeding of all groups of animals provides up to 15 months of age of heifers their live weight more than 380 kg that helps to ensure milk production at the level of 8500 kg of milk with high fat and protein in milk.

The use of grain legumes contributes to the increase in the share of protein in feed, improves the quality and efficiency of rations. This article describes the results of chemical analysis of the rumen contents and the blood serum in experimental animals at feeding the rations enriched with vetch. Chemical studies of seeds of vetch have showed that in 1 kg contains nutrients: metabolic energy, MJ – 11,63 and feed units – 1,21, dry matter – 863 g, crude protein – 240,8 g, digestible protein – 207 g, calcium – 14,42 g, phosphorus – 1,06 g. In the ration of the experimental group of calves Black-and-White breed added seeds of vetch in the composition of the concentrate mixture in an amount of 20%. Enrichment of the concentrate mixture by additive of vetch increases the enzymatic processes in the rumen, which in turn promotes better assimilation of nutrients of feed and live weight gain. We propose to increase protein and energy value of the rations to input in the grain mixture 20% of vetch, when the structure of the ration consist of roughage feed – 47%, juicy – 14,0% and concentrates – 39% of the total nutrition value of ration.

The evaluation of the full-value of feeding of cows by using biochemical method has been given in the article. It has been shown how to adjust rations with changing recipes of compound feeds and individual premixes. Balancing of the ration should be made with the input of the compound feed and with the inclusion in it of missing in the ration nutrients in the form of macro – and micronutrients. Trace elements should be input in the form of mineral and vitamin premix. In the composition of compound feed in the summer period it should be included: barley 16,92%, oat 36,46%, wheat bran 15,86%, pea meal 16,92%, sunflower meal 6,94%, tryptophan (L-Tryptophan) (98 per cent) 0,36% and sodium chloride 1,7%, DAP feed 3,84%, premix 1%. In the composition of 1% premix it is necessary to input the following elements: iodine – 152 g/t and vitamin D – 220 IU/t. During the autumn period: barley 20%, oat 35,5%, wheat 25,85%, pea meal 5,89%, rye 4,71%, protected protein 3,03%, feed lysine (98,5 per cent) 0,51%, feed methionine (98,5 per cent) 0,17%, tryptophan (L-Tryptophan) (98 per cent) 0,34%, sodium chloride 1,3%, feed precipitated phosphate 1,7%, premix 1%. In the composition of 1% premix it is necessary to input the following elements: copper – 301 g/t, zinc – 6,7 g/t, cobalt – 95 g/t, iodine – 136 g/t, vitamin D – 172 thousand IU/t.

The use of the drug of new generation Solunat in the rations of heifers of Red-and-White breed has been scientifically justified. It has been established the optimal dose and the influence of the drug on feed consumption, digestibility and utilization of dietary nutrients, energy, growth, conformation of heifers and their udder and biochemical status of the blood of heifers. The Studies have shown that the digestibility of nutrients depends largely on the amount of Colunat input in the composition of the ration of heifers. So, the best digestibility of all nutrients was observed when the additive in the diets of heifers 3rd experimental group one dose (500 ml) of the drug Solunat. In this group the digestibility of dry matter compared with the control group was higher by 3,6% (P < 0,05). Statistically significant difference compared with the control group on digestibility of nutrients, except organic matter and nitrogen-free extractives were heifers of 4-th group receiving the highest dosage of additive. The digestibility of dry matter, they were superior peers from the control group by 2,4% (P < 0,05), crude protein by 3,74% (P < 0,05). Solunat in the rations of heifers in optimal dosage helps to get larger offspring from them. The economic feasibility of the use of the drug in feeding heifers has been determined. The highest profit has been obtained in the 3rd experimental group, which is associated with dose optimization of the protector of protein Solunat in rations of this group of heifers.

The organism of productive animals has being exposed to numerous natural and manmade influences in the industrial production. Each of them is a definite destabilizing factor for the physiological functioning of the body. The biological and physiological status of sows when used in their diet of natural feed additive MPFA-1 has been studied, the dynamics of the indices of nonspecific resistance of the organism of sows during lactation has been defined. Analysis of the state of humoral factors of natural resistance indicates about an increase in the bactericidal activity of the blood serum of experimental animals compared to controls by 5,87%. Lysozyme activity of the blood serum for the same period in the experimental animals was higher by 9,15% (P < 0,001) than the intact sows. It has been established the stimulating effect of natural feed additives MPFA-1 on the values characterizing cellular immunity. The sows of the experimental group had phagocytic activity of leukocytes higher by 15,81% (P < 0,05) than the control group. The difference in favor of the sows of the experimental group on the phagocytic index and the phagocytic number was 19,5 and 37,57%, respectively.

The analysis of consumption of broiler goslings in the composition of compound feed drug Fizyme XP 5000 G has been given. It has been established that moisture content in muscle tissue of goslings of the control group outperformed experimental groups by 0,46, 1,17, and 1,79%. The content of fat in muscle tissue goslings of the control and the 1st experimental groups were inferior to herdmates the 2nd and the 3rd experimental groups by 0,19 and 0,07%. The broiler goslings consumed in the composition of compound feed drug Fizyme XP 5000 G had better meat productivity and were characterized by large output eviscerated carcass. However, against this background, the best performance was observed in broiler goslings in the 3rd experimental group that consumed the feed mixture with the addition of the drug Fizyme XP 5000 G in a dose of 150 g/t. Muscle tissue broiler goslings consuming the drug Fizyme XP 5000 G differed low moisture content and higher content of fat, protein, ash and characterized by high energy value. The protein content in muscle tissue in the goslings of the control group was less than in experimental groups by 0,87, 1,46 and 0,85%.

The characteristic of the enzyme drugs of the new generation domestic (Cellobacterin) and foreign (Fibrozyme) production and their use in the rations of animals has been given. Cellobacterin is isolated from rumen microorganisms with high cellulosolytic activity and ability to produce organic acids (lactic, acetic, etc.). Cellobacterin is able to completely replace the ration of feed enzymes and probiotics, as well as to reduce the need for antibiotics and prebiotics. Fibrozyme is a drug of glycated celluloses and hemicelluloses. Fibrozyme almost doubles the digestion of oats and wheat, improves digestion of sorghum and barley, and increases the milk productivity of cows.

The influence of feed additive Amigo on hematological and protein composition of the blood, the level of activation of enzyme systems and the correlation of studied parameters with the productivity of fattening steers of Black-and-White breed has been studied. It has been established that the use of feed additive Amigo is aimed at creating the anabolic processes in the interstitial metabolism, normalization of bioelemental status, improve the functional state of the organism of steers in general. There is a general pattern of correlation of change in growth of steers with oxidative properties of the blood. With the increase of live weight in steers from both groups had an increased number of red blood cells, high positive correlation in the range of 0,69 to 0,87 had been observed. Hemoglobin content was not always changed in parallel with the increase of live weight, and that was probably due to mutual compensation of indicators of oxidative properties of the blood. However, the obtained correlation coefficients are highly positive, but in steers of the experimental group they were slightly higher compared with the steers of the control group. On the basis of the received data by the coefficients of correlation it follows that the content of hemoglobin, erythrocytes and total protein are mostly directly dependent on the nature of growth of steers of Black-and-White breed.

Material on studying of 16 varieties of feed millet in the Pavlodar region of Kazakhstan Republic has been explained in the article. The highest productivity under these conditions possesses varieties of selection of the Altai Agricultural Research Institute – Altai fodder, Altai golden and African fodder – 151. Harvesting of dry matter at these varieties from hectare is 1,97–2,15 ton, exceeding a control variety Fodder-89 by 12–22%. At cultivation for grain the variety Altai golden is more productive (590 kg/hectare).