Perfil de sensibilidade de antimicrobiana de espécies de Estafilococos identificados em casos de mastite caprina

Abstract

Six goat herds were studied in the State of Rio de Janeiro, located, respectively, in the Serrana Region (Nova Friburgo and Valença), in the Southern Fluminense Region (Resende and Barra Mansa) and in the Baixada Fluminense Region (Itaguaí and Seropédica). Of the 116 milk samples collected from the mammary glands after selection by the ''California Mastitis Test'' - CMT, 50 (43%) were positive for bacteriological tests, and it was possible to identify: 28 % (14 samples) of S. aureus, 28% (14 samples) from S. hyicus var. hyicus, 18% (09 samples) of S. intermedius, 14% (07 samples) of S. saprophyticus and 12% (06 samples of S. epidermidis. The antimicrobial susceptibility profile of these 50 samples was tested by the diffusion method in It was possible to observe that the most efficient active ingredient was 66 % Gentamicin followed by 55% efficiency Vancomycin Sensitivity to Cephalosporins ranged from 19 to 26% while the sensitivity to Beta-Lactam 7 to 26%, and the least efficient antimicrobial was erythromycin, showing a sensitivity of only 7%.