Influence of minerals on health status and reproduction of cattle without marketable milk production

Minerals in beef cattle nutrition are very important for the health of cows, their conception and also for their calves and colostrum, which is very important to them. The aim of the work was to evaluate the health status and reproductive indicators in terms of the content of minerals in the blood of BTPM cows. The literature review describes the digestive system of cattle, characterizes beef cattle and especially meat simental, in which the experiment took place. I also describe the nutrition of cattle, blood composition and hematological parameters of blood. A total of 3 samples were taken every 3 weeks. In each sample, 12 blood samples were taken from cows aged 20-30 months with a live weight of 600-750 kg. Overall, most values were within the usual ranges. By maintaining the same feed ration and adding a mineral lysis with increased selenium content, the cows could get better and some mineral values would improve