Abstract
This article examines the biological characteristics, conditions of maintenance, care and feeding of cows brought from abroad in the private farm "Bobur Murodalievich". In the experimental group, the cows consumed feed with a nutritional value of 4652.2 feed units, which is 339 kg or 5.6% more than in group II. The indicators of metabolic energy, dry matter, crude protein, without nitrogenous extractive substances (NES) in the composition of the feed were also observed.The cows of the 1st group spent 94.7 kg or 2.0% less feed per unit of dairy products during the lactation period, and 102.8 kg or 2.3% less for 4% milk than the cows (daughter) of the 2nd group. The feed consumption per 1 kg of natural fat milk in both groups was 0.98 feed units. The amount of feed used per 1 kg of 4% milk was 1.03 and 1.0 feed units for both groups of cows. Thus, the cows of the second group showed the best results for most indicators.