Search

Majority of mastitis cases are a result of bacterial infection by small group of microorganisms. Mastitis reduces milk yield, degrades milk composition and causes heavy economic losses to farmers. Keeping these points in mind the common microbial pathogens were isolated from the milk of cows (n=45) from different farms in Jaipur showing subclinical and clinical signs of mastitis and were subjected to drug sensitivity test with routinely used 15 antibiotics. The pathogens detected were E. coli (42) and Staphylococcus aureus (28). The E. coli were found most resistant to majority of antibiotics like Ampicillin, Streptomycin, Tetracycline, Gentamicin, Vancomycin, Penicillin, Cefipime, Amoxicillin-clavulanate while S. aureus isolates were found resistant to Vancomycin, Penicillin, Imipenem, Tetracycline, Aztreonam, Azithromycin, Streptomycin and Ampicillin. Most E. coli isolates were sensitive towards Fosfomycin and Enrofloxacin while S. aureus isolates were sensitive towards Fosfomycin and intermediate sensitive towards Trimethoprim. The rampant use of antibiotics in dairy sector for improving milk-meat yield and to combat diseases is the main cause of an increased resistance amongst pathogens. Therefore, the strategies for prudent use of antibiotics in dairy industry should be implemented and the line of treatment for mastitis must be suggested only after antibiotic sensitivity test. [ABSTRACT FROM AUTHOR]