MILK PRODUCTIVITY OF COWS WHEN USING PROTEIN SUPPLEMENT "BELKOFF-M"

Abstract

The disclosure of the genetic potential and milk productivity of cows of the Holsteinized Black-and-White breed largely depends on the use of certain feeding factors. The lack of protein and the imbalance of its quality indicators, the lack of amino acids in diets is one of the most important problems in feeding dairy cattle in modern animal husbandry. The synthesis of microbial protein in the rumen is limited and provides only up to 50% of the cows' protein needs, the remaining 50% must be supplied to the animal's body with protein that is not degradable in the rumen. But, since traditional feeds have a low content of it, it is necessary to enrich the main diet with high-protein supplements. To solve this problem, we used the method of introducing into the diet of cows of the experimental group an additive with a "protected" protein - "Belkoff-M". The study was conducted on the basis of the dairy complex LLC "Modern Agrotechnologies" "Ryzhovo" of the Moscow region, Podolsky district, the village of Babenki. 20 dairy cows of the Holsteinized Black-and-White breed were selected by the method of pair-analogues, taking into account the breed, age, live weight, productivity and date of the last calving. Animals received the same diet in the preliminary period. By the beginning of the experiment, the lactation period of cows ranged from 123 to 215 days. Then they were divided into two groups, one of which received a protein supplement instead of part of the feed. The results in the groups were determined in accordance with the data of control milkings and chemical analysis of milk on the 19th, 47th and 76th day of the experiment. Studies have shown the effectiveness of the protein supplement "Belkoff-M" in feeding highly productive cows. Was reduced part of the feed in the diet and increased the amount of non-degradable protein in the rumen. Thus, it was possible to reduce the exorbitant level of cleavable protein, which ultimately led to the normalization of metabolic processes in the animal body and an increase in the productivity of cows.