Abstract
The authors conducted a comparative analysis of growth energy indicators and dynamics of live weight of young Kalmyk breed at different levels of feeding during the suckling period. It is shown that during the entire period of cultivation, the consumption of metabolic energy in experimental bulls was 4000 MJ and 50 kg of digestible protein more than in peers of the control group. Additional feeding of suckling calves provided an advantage in the average daily growth in bulls by 70 g, and in heifers by 38 g per head per day. From the bulls of the experimental group, which have higher live weight indicators and a lower cost of 1 kg of growth than their peers in the control group, but with the same selling cost of 1 kg of live weight, 56.1% more profit was obtained and 5.3% higher profitability.
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