The aim of the research was to study the effectiveness of the developed recipes of energy-fat concentrates in the diets of dairy cows in comparison with the same amount of soy meal. To achieve this goal, a scientific and economic experiment was conducted in the State Enterprise "Zhodinoagroplemelita" of the Smolevichi district of the Minsk region. For the experiment, 4 groups of cows were formed on a tethered basis on the principle of pairs of analogues with an average live weight of 550-600 kg, 9 heads each. During the period of scientific and economic research on the effectiveness of using three recipes of energy-fat concentrate, the daily additional increase in milk of 3.6% fat content from each experimental cow was 1.0, 1.4 and 0.8 kg, respectively, in groups. Additional profit from the use of energy-fat concentrates as top dressing instead of soy meal amounted to 75.9, 106.3 and 60.7 rubles from each cow.