The productivity of young cattle when feeding a natural mineral supplement

Abstract

The article presents the results of two production inspections on young cattle with an initial live weight of 73.8 kg in the summer period. and in the winter period, 71.9 kg, by feeding the two most effective doses of a natural mineral additive as part of the feed mixture. In the summer, the young cattle in the diet received30.25 mJ exchange energy and407.2g digestible protein, in winter, respectively, 30.67mJ and225.0g digestible protein. The average daily gain in the experimental group in the summer, which in the feed mixture was fed 20 g per day, the head of the natural mineral additive was 4.6% more, and in the winter period, where 30 g was added to the diet. mineral supplement was 2.59% more compared to control animals. The recoupment of additional expenses per one ruble in the summer period was 21.3 and in the winter period 8.28 rubles. The content of chemical elements in hair samples of withers, back and tail, it turned out that the content of cadmium in the summer period in all hair samples in young cattle was lower in the experimental groups who received the natural mineral supplement.