Bacteriology and antibiogram of clinical and subclinical mastitis in dairy herds of Sanandaj city

Subject Areas : Journal of Large Animal Clinical Science Research(JLACSR)

Received: 2021-08-15 Accepted : 2021-08-15 Published : 2013-09-23

Keywords: Sanandaj, Antibiogram, Bacterial mastitis,

Abstract :

Mastitis causes great economic losses including reduction of milk production and quality as well as milk microbial contamination is considered as a means of disease transmission to humans. Therefore investigating various aspects of the disease can be effective in controling and decreasing damages due to the disease. In this study, 200 samples of raw milk from cows with clinical mastitis or cows which showed different degree of positivity in the California mastitis test were tested. After colony  identification, antibiotic susceptibility test was performed by disk diffusion method. Cultures were positive in 152 cases (%76) and negative in 48 cases (%24). Highest frequency belonged to species Micrococcus luteus (%39.5), Micrococcus varians (%14.5), Staphylococcus epidermidis (%10.5), E.Coli (%6.6), Staphylococcus aureus (%2.6) and lowest frequency belonged to the Serratia (%1.3). In the antibiogram test the most sensitivity of agents genus was to contamination was Gentamycin (%80.31), Enrofloxacin (%77),  Ciprofloxacin (%66) and Oxytetracyclin (%48) and the least sensitive was to Cefixime (%9.9). Results derived from the antibiogram tests in the study indicates the necessity of similar periodic studies which can be considered a regional therapeutic programme.                                 

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