Аграрный вестник Урала № 09 (176) 2018Биология и биотехнологии
EFECT OF INTEGRATED FORAGE ADDITIVES VITEX RT IN COWS OF HOLSTEIN DURING THE TRANSITION PERIOD
Research presents information about the impact of complex feed additiveVitex RT on milk productivity and efficiency of its application. The researchwas conducted in 2017 in the Moscow region. For carrying out an experiment there was created twogroups of Holstein breed cows of 10 heads in each one. The age, origin, lactation, daily milk yield and live weight of thepre-selected animals were considered. The article also states that feeding the preparation in a dose of 100 g per head a day duringthe transition period increases butterfat 18.0 %, converted into 4 %fat-corrected milk for cows in the period of improving milk yield at acomparatively equal concentrate cost per liter of milk, and also decreases theservice period by 13 days. Thefat content of milk in cows in the experimental group was 0.19 %higher. As a result of higher milk yield and fat content, the yield of milk fatwas higher in the experimental group by 18.1 %(P ≤ 0.05). In the experimental group, 13.16 kg of milk protein was obtainedper animal, which is 13.6% more than in the control. The results obtained showed that inclusion of feedadditives Vitex-RT into the cow diets contributed to increase of their milkyields, as well as of fat content in milk produced, the supplement increasesprofitability by 23.09 %. Thecalculation of the economic efficiency of using Vitex RT supplements showedthat with an equal sale price, the cost price of 1 kg of milk from cows fromthe experimental group decreases by 1.56 rubles compared with the controlgroup, which makes it possible to gain profits by 13592.80 rubles in the first120 days of lactation. and increase the profitability of milk production.
cattle, Holstein breed, milk productivity, yielding qualities, economic efficiency.
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