The article shows that adding the food supplement "Imnamak" to the diet of heifers gave positive results. The experiment was conducted on Holstein cows at the K-Eldor farm located in the Pastdargam district of the Samarkand region. The experiment showed that the heifers of the experimental group surpassed the heifers of the control group in body measurements and body mass index.

The research determines the effectiveness of using the intensive rearing of heifers by increasing the level of heifer feeding at different stages of growth and development by 20-30% and reaching a live weight of 380-400 kg at the age of 15-16 months, the early insemination, the possibility of forming the herd of highly productive cows aged 24-25 months and their early transfer to the main herd of cows to prolong the period of economic use.