Use of raw corn feed in diets of dairy cows | Использование сырого кукурузного корма в рационах дойных коров
2011
Dobruk, E.A. | Pestis, V.K. | Sarnatskaya, R.R. | Taras, A.M. | Frolova, L.M., Grodno State Agrarian Univ. (Belarus)
In the conditions of the Republic of Belarus there was studied efficient use of maize (Zea mays) feeds in diets of dairy cows. The studies made it possible to determine that the organic part in the raw corn feed made up 341,4 g. It was presented by nitrogen-free extractive substances (189,4 g), crude fat (70,0 g), crude protein (46,0 g). Content of crude ash was 26,6 g. Research results showed that inclusion of this feed into diets of dairy cows made it possible to increase average daily milk yield at 6,1%. During the 60 days of the experiment the gross yield per cow in the experimental group was 1140 kg, that was on 66,0 kg higher than in the control group. Use of row corn feed has reduced the cost of rations in the experimental group at 16,9%. This had a positive impact on the cost of milk. Reducing of milk production prime cost is beneficial to increase of profits from the cows of the experimental group, which was calculated per 1 head in the amount of 345,8 thousand Belarusian rubles for the period of experiment.
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