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In beef cattle breeding, unlike dairy farming, the only product is a calf. Therefore, the industry's competitiveness directly depends on the annual retention from each cow and heifer calf, the preservation of calves, and the high growth energy of young animal growth throughout the rearing period. These indicators are influenced by many factors, one of which is the breeding technology. The colostrum period is the most critical; newborn calves that do not receive adequate attention at the beginning of this period die within the first two days of life or have growth retardation. Given this, it becomes urgent to establish the level of dependence between young animals' growth and the technology of keeping cows and calves during the colostrum period. The studies were performed on cows and calves of the Aberdeen-Angus breed having problems in interaction during the colostrum period due to a weak maternal instinct in cows or a sucking reflex in calves (problem pairs' cow-calf). The growth rates of bull-calves and heifers were studied: live body weight, average daily gains, absolute gains, and multiplicity of live weight gain. The factor of a new technological element - the transfer of problem pairs' cow-calf into correction sections, in the colostrum period, on the further growth of young growth was analyzed. Our studies have shown a potential difference (P=0.999) between the live weight of bull-calves, which in the colostrum period were transferred together with the cows to the correction sections, and those for which no correction sections were used. The advantage in live weight at the age of 18 months is 27% and 28% (P=0.999) in favor of bull-calves that were transferred; they prevailed by 28% (P&gt;0.999) in average daily gains, and by 28% and 29% (P=0.999) in absolute terms. When compared by live weight at the age of 18 months, the heifers, which had been transferred to correction sections during the colostrum period, had an advantage of 26%. The average daily and absolute gains in these heifers were 29% greater than the heifers, which were not transferred.

Influence of keeping technology on the weight gain of the Aberdeen-Angus breed young animals in the colostrum period