- 期刊
上市白肉雞與仿土雞之沙氏桿菌分離率與抗藥性比較
Salmonella Serovars Isolated from Marketing Broilers and Simulated Native Chickens: Prevalence and Drug Resistance
摘要
The investigation of the Salmonella strains isolated from liver, gall bladder and cecal contents of the broilers and simulated native chickens (SNCs) provides an opportunity to explore the difference of two breeds' prevalent serovars and antimicrobial resistance of Salmonella. Three hundred broilers and SNCs each were sampled. Using pre-enrichment, selective enrichment and selective isolation, the Salmonella were isolated and identified. Disk diffusion method was used for antimicrobial resistance. Both breeds of chicken showed that liver and gall bladder had higher isolation rate than cecal content. However, SNC had higher isolation rate than broilers (p＜0.05), and each breed has different prevalent serovars. Three hundred and forty five strains were isol8ted from SNC, and the dominant isolate was S. Albany (n=163), followed by S. Schwarzengrund (n=90). Two hundred and twenty five strains were isolated from broiler, while the isolation rate was similar between 3 dominant isolates (S. Albany-45, S. Schwarzengrund-50 and S. Enteritidis-43). Most isolated serovars from broiler and SNC showed antimicrobial resistance, and was multiple antimicrobial resistant. While serovars isolated from SNCs had more severe case of antimicrobial resistance than that from broilers. This investigation might serve as the basis for monitoring Salmonella in marketing chicken, furthermore, the Salmonella contamination and infection of marketing chickens in Taiwan should be tracked continually.
並列摘要
The investigation of the Salmonella strains isolated from liver, gall bladder and cecal contents of the broilers and simulated native chickens (SNCs) provides an opportunity to explore the difference of two breeds' prevalent serovars and antimicrobial resistance of Salmonella. Three hundred broilers and SNCs each were sampled. Using pre-enrichment, selective enrichment and selective isolation, the Salmonella were isolated and identified. Disk diffusion method was used for antimicrobial resistance. Both breeds of chicken showed that liver and gall bladder had higher isolation rate than cecal content. However, SNC had higher isolation rate than broilers (p＜0.05), and each breed has different prevalent serovars. Three hundred and forty five strains were isol8ted from SNC, and the dominant isolate was S. Albany (n=163), followed by S. Schwarzengrund (n=90). Two hundred and twenty five strains were isolated from broiler, while the isolation rate was similar between 3 dominant isolates (S. Albany-45, S. Schwarzengrund-50 and S. Enteritidis-43). Most isolated serovars from broiler and SNC showed antimicrobial resistance, and was multiple antimicrobial resistant. While serovars isolated from SNCs had more severe case of antimicrobial resistance than that from broilers. This investigation might serve as the basis for monitoring Salmonella in marketing chicken, furthermore, the Salmonella contamination and infection of marketing chickens in Taiwan should be tracked continually.