ANTIMICROBIAL RESISTANCE OF B- LACTAMASE COAGULASE-NEGATIVE STAPHYLOCOCCI (CNS) PRODUCERS ISOLATED FROM DAIRY SHEEP AND GOATS | ||||
| Journal of the Egyptian Veterinary Medical Association | ||||
| Volume 77, Issue 3, September 2017, Page 555-564 PDF (1.17 MB) | ||||
| Document Type: Original Research Articles | ||||
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| Abstract | ||||
| Dairy goat and sheep farms suffer severe economic losses due to intramammary infections with Staphylococcus species representing the main cause of clinical mastitis in small ruminants. Antimicrobial resistance patterns were determined in 32 coagulase negative staphylococci (CNS) isolated from milk samples of goats (n=20) and sheep (n=12) with subclinical mastitis. The CNS isolates showed the highest resistance rate against cloxacillin and oxacillin (100 % each). All CNS isolates were sensitive to florfenicol, neomycin and gentamicin. All β- lactamase CNS producers detected from the examined sheep milk samples were resistant to penicillin (100%). While 66.7% of β- lactamase CNS producers detected from the examined goat were resistant to it. Antimicrobial susceptibility patterns should be identified for CNS; as current susceptibility data are necessary to select appropriate antibiotics for a successful treatment. | ||||
| Keywords | ||||
| Coagulase negative staphylococci (CNS); mastitis; antibiotic sensitivity test; β- lactamase; sheep; goat | ||||
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