Purpose. To determine the effectiveness of conservation of wilted green mass of winter triticale with Pannonian peas, alfalfa and corn in the early phase of wax ripeness with the universal bacterial starter “SilakPro” and to establish the level of preservation of essential nutrients and nutrition value of feed. Methods. Comparative analysis, technological, balance and feeding experiments, zootechnical experiment. Results. The course of processes of sugar fermentation and formation of organic acids for preservation of wilted green mass of legumes, legume-cereal mixture and corn under the action of lactic acid and propionic acid inoculants is covered. Loss of nutrients and feed quality indicators, the results of their quantitative introduction into the general mixed diet of dairy cows are determined. The results of research on the preservation of wilted green mass of alfalfa, legume-cereal grass mixture and corn with the universal bacterial starter “SilakPro” (dry preparation) in the dose of 4-6 g/t are presented. Indicators of ensiling, quality of the finished product, loss of nutrients in the process of ensiling are calculated. Conclusions. The nutritional value of the experimental variant of silage from wilted mass of alfalfa was 8.42 MJChE, a mixture of Pannonian peas with winter triticale – 7.69 MJChE, corn in the phase of the beginning of wax ripeness of grain – 9.08 MJChE. The level of nutrient retention when using universal silage leaven exceeded the options without preservatives by 3-11%. Introduction of experimental silages in the general mixed diet in the amount of 42-56% of dry matter provides an increase in average daily milk productivity by 10%.
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