The results of researches have shown the good adaptability of cows of Austrian selection to conditions of the Republic, high milk productivity and the better fodder self-payment.

This article is devoted to the main causes that play an important role in the occurrence of hoof diseases in cows. The article analyzes the role of microbiological infections, parasitic invasions, poor nutrition, environmental factors and stress factors in the development of diseases associated with gastrointestinal disorders.

In the II-lactation of the daughters of the Montblyard breed, according to the type of external body structure of the cows, the milk-meat type cows have a height of 2.28%, the height of the udder is 0.94%, compared to the meat-milk type. Breast size is 0.58%, 3.1% more, chest depth is 1.67%. sht became more than the type of exterior body structure.

Mastitis in dairy cows has been reported on farms, leading to a decline in milk production in cows. It is necessary to develop measures to prevent the disease without developing treatment, ie to identify the latent period of mastitis. Then we will have economic efficiency on farms and among the population

The state of animal health and productivity as a whole depend on metabolic processes, the intensity of which is largely regulated by the provision of the body with microelements, vitamins and other metabolic products.

The article provides information on effective methods of using purebred cattle, taking into account the breed and age of dairy cows, determining lactation periods, and producing maximum milk in order to produce high-quality milk products in cattle breeding.

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.

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.

This article provides information on the feeding conditions of red-and-white Holstein cows at the "Abdumalik Ota Vorislar" breeding farm in the Bakhmal district of the Jizzakh region.