Сільське господарство та лісівництво

Gunko Iryna – candidate of technical sciences, associate professor, Vice-President of the Training, Research and Production Complex «All-Ukrainian Scientific-Training Consortium» Vinnytsia National Agrarian University (Vinniytsia, st. Sonyachna 3, VNAU, 21008, email: irynagunko@vsau.vin.ua).

Syrovatko Catherine – Candsidat of Agricultural Sciences, Associate Professor Department of feeding farm animals and water bioresources, Vinnytsia National Agrarian University (21008, Vinnytsia, 3, Soniachna Str.; e-mail: makcimovna@ukr.net).

Feed base is one of the main factors in increasing the productivity of the livestock industry, as in the structure of the cost of milk and beef, the cost of feed is more than 50%. The condition of the fodder base is determined primarily by the total production of different types of feed: hay, silage, haylage, grains. The efficiency of feed use, i.e. their productive effect, depends on the quality of feed and the optimal structure of their use. The article deals with the dynamics of providing cattle with fodder in the experimental farm "Shevchenkivske" during the last three years, the analysis of the annual structure of fodder and biochemical indicators of quality of corn silage and alfalfa haylage, the share of which in the structure of fodder mixtures of cows reaches 50-55%. Provision of cattle herd with hay is 44%, silage -102%, haylage - 111%, concentrated feed 100%. Over the last 3 years, the consumption of concentrated feed in feeding cows increased by 6.9%, haylage - by 35% while reducing the use of hay and silage by 6.0 and 13.1%, respectively. The total feed costs per average annual cow decreased from 61.0 to 59.3 quintals. korm.od. The dynamics of reducing the quality of silage and haylage was revealed. Corn silage in terms of biochemical quality indicators meets the requirements of class 2, alfalfa haylage - class 3. Both silage and haylage have a high content of acetic acid - 46% of the total acid level at a rate of 40 and 25%, butyric acid is present. Haylage has high humidity and active acidity. The energy nutrient content of alfalfa haylage decreased by 1.13 MJ or 35.3%. It is established that silage and concentrates -79.8% predominate in cow feeding, the ration has a low level of sugars, high - acidic elements, which negatively affects the processes of scar digestions and reduces the productive effect of feeds. During three years, milk yields per cow decreased by 19.1% with an increase in feed consumption per 1 quintal of milk by 21.4%. In order to improve the quality and nutritional value of silage and haylage, we propose to improve the level of tightness in the trenches, to harvest up to 30% of silage and haylage in rolls and film sleeves, to use domestic preservatives Litosil and Litosilplus.

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