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Research
4.
Prevalence and antibiotic susceptibility of Staphylococcus
aureus from bovine mastitis -
C. G. Unakal and B. B. Kaliwal
Vet World. 2010; 3(2): 65-67
Abstract
The primary objective of this study was to determine the
prevalence and antimicrobial susceptibility of mastitic
Staphylococcus aureus in dairy cows. Milk samples for
microbiological culture were collected from dairy herds. A total
of 105 samples were screened and 68 confirmed Staphylococcus
aureus were obtained. The a, ß and non haemolytic activity
revealed 20.58%, 75% and 4.41% respectively in 68 isolated
strains of Staphylococcus aureus. Resistance of Staphylococcus
aureus against 10 antimicrobial agents was tested using the disc
diffusion method. The highest 86.76% isolates were resistant to
penicillin followed by ampicillin 70.50%, amoxicillin 63.23%,
gentamycin 47.05%, amikacin 30.80%, erythromycin 27.94%,
Ciprofloxacin 26.47%, methicillin 23.52%, cefotaxime 20.58% and
the lowest resistant was shown in ceftriaxone 19.11%. The study
revealed that the increase in prevalence and antibiotic
resistance pattern of the Staphylococcus aureus isolated from
bovine mastitis.
Key words: Bovine mastitis, prevalence, antibiotics
resistance.
