[show abstract][hide abstract] ABSTRACT: A total of 100 uteri from slaughtered Kundi buffaloes were studied at random. Eight different bacterial species were recognized, viz: Staphylococcus aureus, Escherichia coli, Staphylococcus epidermidis, Corynebacterium pyogenes, Micrococcus citreus, Proteus mirabilis, Pseudomonas aeruginosa, and Listeria monocytogenes. Eight different antibiotics were applied to record their efficacy against the isolates, viz. gentamycin, kanamycin, neomy-cin, chloramphenicol, tetracycline, sulphamethoxazole, ampicillin and polymyxin B. The species sensitive (>70%) to gentamycin were Staphylococci, Corynebacterium pyogenes and Micrococcus citreus. The species sensitive to kanamycin were Staph. aureus (73%), Staph. epidermidis (90%), C. pyogenes (90%) and Ps. aeruginosa (80%). Listeria monocytogenes was the only species sensitive (80%) to neomycin. The species Staphylococci were (86.6%), E. coli (73.3%), C. pyogenes (86.6%), Micrococcus citreus (80%), Ps. aeruginosa (86.6%) and Listeria monocytogenes (80%) sensitive to chlorampheni-col. The tetracycline was found highly effective against Staph. aureus, C . pyogenes, Micrococcus citreus and Listeria
monocytogenes (80%). While sulphamethoxazole was highly effective against Staph. aureus (73.3%), C. pyogenes (73.3%) and Ps. aeruginosa (80%). Moreover, the only species sensitive (80%) to ampicillin was Staph. epidermidis . Interestingly, the species Proteus mirabilis was sensitive (80%) to gentamycin only. All of the isolates reacted variably to polymyxin B but their sensitivity was not higher.