Etiological structure of pathogenic enterobacteria of newborn calves and their resistance to antimicrobial drugs.

Abstract

The problem of mono- and mixed intestinal infections in livestock complexes is actual due to the circulation of enterobacteria in the environment and the high susceptibility of newborn calves. We studied the etiological structure of pathogenic enterobacteria and their associations in the mass gastrointestinal diseases of newborn calves and determined their resistance to antimicrobial drugs. As a result of the research, it was found that the most common acute intestinal disorders are caused most often by P. mirabilis (52.4 %), and least often by Y. enterocolitica and K. pneumoniaе (4.8 %). Five types of enterobacteria associations have been identified, most of which (57.2 %) are communities of E. coli and P. mirabilis. The resistance of the studied cultures of microorganisms to antimicrobial agents is manifested in varying degrees.