Influence of the feed additive "Profort" on the rumen microbiome of black-pied holstein cows

Abstract

The use of additives in the diet, including those based on probiotic preparations, helps to improve digestion processes, normalize the balance of microflora, metabolism and increase animal productivity. The aim of this work was to analyze the rumen microbiome of Black-and-White Holstein cows using the enzyme-probiotic feed additive "Profort". The cows of the experimental group were fed 30.0 g of probiotic three times a day for 15 days, with a break of 15 days. As a result, at the end of the experiment, in the experimental group, at the family level, significant reliable differences were found in the representation of representatives of cellulolytic bacteria taxa: Oscillospiraceae, SR 1, Flavobacteriaceae and Weeksellacea, as well as taxa of lactate -fermenting bacteria. Thus, the use of the feed additive "Profort" in the diet of highly productive lactating cows helps to increase the concentration of beneficial microorganisms (cellulolytic, lactate -utilizing) in the rumen, fermenting the intermediate products of the breakdown of feed components to form volatile fatty acids necessary for the synthesis of milk components.