Shalu Choudhary, Ayush Tomar, Kaish Ansari, Nisha Dhillon, Lalit Kumar, Megha Singh, Prakrati Tyagi and Sonal Chaudhary

There are different types of bovine animal excreta having a wide range of micro-organisms such as Salmonella, E.coli, Bacillus, Clostridium, Bacteroids, Cytophage etc. Among these microorganisms, Salmonella and E.coli are the most common bacteria available in bovine fecal samples. The aim of this study was to check the antimicrobial activity of certain drugs against the above-mentioned bacteria. For determining the antimicrobial activity, the bacteria were isolated on Eosin Methylene Blue agar media (EMB agar). Eosin methylene blue agar is used as a selective media for the growth of gram-negative bacteria. The bacteria isolated from the selective media were identified on the basis of their morphological studies and the characterization of bacteria is done by the help of morphological, and biochemical analysis. It was identified that the isolated bacteria were Salmonella enterica and E. coli. The antibiotic Ampicilin and Fosfomycin gave the maximum inhibitory concentration against these bacteria.

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