In order for each cow farm to function and ultimately lead to profitable yields of good quality, it is crucial to pay attention to several factors. Apart from hygiene and timely treatment, nutrition is extremely important for every aspect of successful production. Properly categorized groups of animals and their adapted diet are key to animal health as well as yields. Any imbalances in the amount of nutrients that the animal ingests can lead to potential digestive disorders and thus to a drop-in production, which is correlated with monetary gain. Having the goal of achieving the highest possible production, it is very important to harmonize the ratio of protein, fiber and energy; it must be adapted to each category. In this Master’s thesis, analysis of farm conditions is performed before and after the expert intervention. Daily quantity of milk is measured by milking machine while the chemical composition is determined by References laboratory analysis. Furthermore, reproduction of cows was followed together with meal composition before and after expert intervention. Meal composition is balanced and adapted to the individual categories resulting in an 17 % milk yield increase. In addition, with proper organization and balanced diet, reproduction is also increased.