Post-antibiotic Effect of Florfenicol against Pasteurella multocida(birds) in vitro
Xu Zhang, Wang Da-ju, Jine Wu
Abstract
Xu Zhang, Wang Da-ju, Jine Wu
Abstract
The post-antibiotic effect(PAE),the post-antibiotic sub-MIC effect(PA-SME) and sub-MIC effect(SME) of florfenicol(Ff) against Pasteurella multocida in vitro were determined in this study.Mueller-Hinton agar colony counting method was used to monitorthe growth of bacteria. The results showed that PAEs of Ff against P.multocidaat 2~8×MIC were 1.31~5.01 h,PA-SMEs(1.66)~24.2 h and SMEs 0.05~1.31 h.It was demonstrated that Ff against P.multocidawas affected by the concentration of antimicrobial agents,the exposure time and the concentration of organism.This study suggested that the administrationscheme of Ff againstP.multocid should be considered to combineits pharmacokinetic parameters,MIC and PAE.
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The post-antibiotic effect(PAE),the post-antibiotic sub-MIC effect(PA-SME) and sub-MIC effect(SME) of florfenicol(Ff) against Pasteurella multocida in vitro were determined in this study.Mueller-Hinton agar colony counting method was used to monitorthe growth of bacteria. The results showed that PAEs of Ff against P.multocidaat 2~8×MIC were 1.31~5.01 h,PA-SMEs(1.66)~24.2 h and SMEs 0.05~1.31 h.It was demonstrated that Ff against P.multocidawas affected by the concentration of antimicrobial agents,the exposure time and the concentration of organism.This study suggested that the administrationscheme of Ff againstP.multocid should be considered to combineits pharmacokinetic parameters,MIC and PAE.
Key concepts: Pasteurella multocida, Florfenicol, Antibiotics, Microbiology, Antimicrobial, Agar, Biology, In vitro