Milk productivity and milk quality of high-yielding cows using the innovative yeast supplement «KLUYVER PRO»

In modern dairy cattle nutrition, the primary source of energy consists of rumen-fermentable structural carbohydrates, mainly derived from cereal concentrates (barley, wheat, etc.), which can make up 30–40% of the diet. This is accompanied by a significant increase in the proportion of high-protein and high-energy feed additives and a reduction in the share of bulky forages. However, maintaining high productivity when using concentrate-rich diets is directly associated with negative effects on metabolic processes in the rumen. A promising approach to preventing metabolic diseases, particularly acidosis, and stabilizing rumen function is the use of probiotics, including feed additives based on live yeast strains. This article presents the results of studying the effect of the yeast-based supplement «KLUVER PRO», derived from live strains of Kluyveromyces marxianus, on the productivity and milk quality indicators of high-yielding Holstein cows. The average daily milk yield in the experimental group exceeded the baseline value at the start of the trial by 0.39 kg or 1.42 %, whereas a slight decrease in milk productivity (0.57 kg or 2.08 %) was observed in the control group by the end of the study. The difference in milk yield between the experimental group and the control group amounted to 0.96 kg or 3.57 %.