The effect of probiotic Vetom 2 on the microbial intestinal landscape in calves after antibiotic therapyThe effect of probiotic Vetom 2 on the microbial intestinal flora in calves after antibiotic therapy

Abstract

Intestinal microflora is directly and actively involved in ensuring the constancy of the internal environment of the microorganism. Disruption of the normal composition of the microflora of the gastrointestinal tract is accompanied by the development of dysbacteriosis. The most important role in restoring the normal intestinal microbiocenosis belongs to bacterial probiotic preparations. The aim of our study was to study the effect of Vetom 2 on the microbial intestinal landscape in calves after antibiotic therapy. Studies were conducted in AO Uchkhoz Prigorodnoye on calves of black pied breed. Five groups of 5 calves each were formed: healthy calves, calves with dyspepsia before antibiotic therapy, calves with dyspepsia during antibiotic therapy, calves after completing antibiotic therapy who did not receive Vetom 2, calves receiving Vetom 2 after completing antibiotic therapy. Feces of calves of all groups were bacteriologically investigated on the content of Escherichia, Streptococcus, Staphylococcus, Salmonella, Pseudomonas aeruginosa. We found that in animals of all experimental groups, the microbial landscape of the intestine is not the same. In diseased calves, before antibiotic therapy, the number of opportunistic microorganisms is much higher relative to the group of healthy animals. During treatment, these figures decrease. The number of conditionally pathogenic microorganisms in calves treated with Vetom 2 during rehabilitation after the end of antibiotic therapy was lower—unlike in the group of calves that did not receive Vetom 2 during rehabilitation—as a result of suppression of growth and development of conditionally pathogenic microorganisms in the intestines of calves after antibiotic therapy by bacterial strains included in Vetom 2.