About some aspects of rumen metabolism and metabolic process in cows organism

The evaluation of the effect of the developed experimental feed supplement on the activity of serum enzymes (aspartate aminotransferase (AST), alanine aminotransferase (ALT), alkaline phosphatase (ALP), alpha-amylase) of dairy cows of holsteinized black-and-white breed during the lactation period was carried out. Some indicators of cicatricial fluid (total microbial number, number of bacilli and yeast-like microorganisms, lactic acid microorganisms, cellulolytic microorganisms, ciliates) in cows were analyzed depending on the feeding dose of an experimental feed additive. A significant increase in the activity of the AST enzyme (10.9%, P