The factors that influence the formation of meat productivity of cattle include feeding, breed, sex, age, fatness, conditions and individual characteristics of animals. The purpose of the work was to substantiate the effective age of slaughter of steers of specialized beef breed Aubrac. The research has been carried out in a breeding farm for breeding cattle of beef productivity in LLC “Bison” in the Omutinsky district in the Tyumen region. An economic assessment of the rearing of steers of Aubrac breed depending on the age of their slaughter has been presented in the paper. Studies have been carried out on steers have been reared up to the age of 15, 18 and 20 months. In the course of research, we have been studied the amount of feed have been consumed during the period of steers rearing and the total costs incurred. The amount of feed and energy consumed by the steers of the studied ages had a significant discrepancy. For example, steers reared before 18 and 20 months of age consumed more hay in relation to steers sold for meat at 15 months of age by 285,2 and 486,7 kg, haylage by 1228,7 and 2273,4 kg and concentrated feed by 276 and 462 kg, respectively. At the same time, the total difference in the amount of energy consumed was 1155,3 and 1685,9 EFU. The difference between the age of realization of steers at 18 and 20 months for the total energy consumed was 530,5 EFU. The level of profitability of production when selling steers for beef at the age of 18 months was 7,6 %, and at the age of 20 months it was 8,3 %. Early sale of steers for meat at the age of 15 months is unprofi table with a payback rate only 98 %.
