Agrarian Science and Food Technologies

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

The article analyzes organoleptic parameters, biochemical composition and energy nutrition of the silage stored in the ground burts with moisture of 75% and harvested from the mixture of winter rye and typhon with the use of biological preservative Viaferm. The productive effect of the researched forage for dairy cows feeding has been established.

It was determined that the use of bacterial and enzyme preparation Viaferm in the amount of 1 g per 1 ton of dried winter rye and typhon mixture did not produce the 1^st grade silage. The total content of organic acids in the silage was 1.73%, the proportion of acetic acid was 51.32%, while that one of lactic acid was only 48.22% at the recommended level of 60% and more. The content of ammonia nitrogen as the indicator of protein hydrolysis exceeded the norm by 14.2%.

The comparison of indicators of the chemical composition of the dry matter of fresh cut and dried mass of rye with typhon and the silage obtained from it showed that the crude protein loss was 16.86%, the loss of non-base extraneous substances was 5.1% and that one of crude fat was 0.74% during the process of silage harvesting. The crude fiber and ash content in the silage was higher by 3.64 and 4.93%. The dry matter energy content of the silage was 9.13 mJ of the exchange energy, which was by 0.74 mJ lower than the green mass of rye with typhon.

Feeding the silage from winter rye and typhon mixture harvested with the preservative Viaferm did not provide a significant increase of milk productivity in the physical mass. However, the fat content in the milk of the experimental group was lower by 0.13%, which led to a decrease of productivity in the obtained mass. This decrease in the productivity of cows was due to the low quality of the silage, i.e. the presence of butyric acid and the high content of ash.

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