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Brazilian Journal of Microbiology
On-line version ISSN 1678-4405
SILVA, R. O. S. et al. Antimicrobial susceptibility of Clostridium perfringens strains isolated from broiler chickens. Braz. J. Microbiol. [online]. 2009, vol.40, n.2, pp. 262-264. ISSN 1678-4405. http://dx.doi.org/10.1590/S1517-83822009000200010.
Clostridium perfringens is a normal inhabitant of the intestinal tract of chickens as well as a potential pathogen that causes necrotic enteritis and colangio hepatitis. The minimum inhibitory concentration (MIC) of seven different compounds used for therapy, growth promotion or prevention of coccidiosis was determined by agar dilution method for 55 C. perfringens strains isolated from the intestines of broiler chickens. All strains showed high susceptibility to penicillin, avilamycin, monensin and narasin. Only 7.3% of the strains showed an intermediated sensitivity to lincomycin, and 49 (89.1%) were considered susceptible. For tetracycline and bacitracin, 41.8% and 47.3% of strains, respectively, were considered resistant.
Keywords : Necrotic enteritis; growth promoters; anticoccidials; antibiotics.