COMPARISON OF THREE INDIRECT TESTS FOR THE DIAGNOSIS OF BOVINE SUBCLINICAL MASTITIS CAUSED BY COAGULASE NEGATIVE STAPHYLOCOCCI WITH THEIR SUSCEPTIBILITY TO SEVEN ANTIBIOTICS.
2012
Ali A. AL-Edany
Two hundred and eighty three bovine milk samples were diagnosed as subclinical mastitis by three indirect tests , the results were reported that the California mastitis test was the best one . Forty –four (15.55%) strains were identified as coagulase –negative staphylococci, Bacteriological cultures of coagulase-negative staphylococci were identified as 14 (31.8%) strains of S. scuiri , 7 (16%) strains of S. lentus,6 (13.6%) strains of S. gallinarum, 4 (9%) for each strains of S. warneri, and S. xylosus , 3 (6.8%) strains of S. saprophyticus , 2 (4.5%) for each strains of S. lugdunensis , S. haemolyticus and strains of S. cohnii. The percentage of antibiotic resistant in CNS were 97.7% for Ampicillin , (86.4% )for Novbiocen +Penicillin and (77.2%) for Oxcillin. While the percentage of antibiotic sensative were (100%) for each of Ciprofloxacin , Chloramphenicol and Gentamycin.
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