Наукові горизонти (Jun 2019)
CORRECTION RUMEN DIGESTION IN CALVES
Abstract
The article presents the results of research regarding the characteristics of cicatricial digestion in calves. It was established that on the 30th day of research the amylolytic activity of the contents of the rumen of the calves of research subgroups was, on average, 1,67 times more than that of the calves of the control subgroups. It is proved that the proteolytic activity of the contents of the calves of research subgroups averaged 1,32 times more than that of the calves of the control subgroups. The cellulolytic activity of the contents of the rumen in calves of research subgroups was on average 1,16 times greater than in calves of the control subgroups. It was established that the ammonia content in the rumen of calves of research subgroups of the first period of studies under the influence of the correction turned out to be 1,18–1,21 times, and in the second period of studies 1,19–1,25 times compared to this indicator of animals of the control subgroups. The total mass of rumen microorganisms was 3,26–4,47%, greater in calves from research subgroups of the first research period, and by 4,57–7,95% in experimental calves from the second research period. It was found that the level of use of nitrogenous components by the rumen microorganisms affects the content of total and protein nitrogen in it. In the calves of the first groups, research subgroups, the total and protein nitrogen content was 1,41–1,69 times higher in the scar content than this indicator of the calves of the control subgroups. In calves of research subgroups of the second groups, the content of total and protein nitrogen was higher than their content in the rumen of calves of the control subgroups. Along with this, the high specific activity of rumen microorganisms contributed to an increase in the content of volatile fatty acids, in the rumen of calves of research subgroups. In the first study period, the content of volatile fatty acids was at the level of 1,34–1,39 times, and in the second study period it was 1,28–1,30 times and averaged 1,34–1,30 times more, in the rumen calves research subgroups.
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