Increased Salmonella Schwarzengrund prevalence and antimicrobial susceptibility of Salmonella enterica isolated from broiler chickens in Kagoshima Prefecture in Japan between 2013 and 2016

Vu Minh DUC; Jiye SHIN; Yamato NAGAMATSU; Ayaka FUHIWARA; Hajime TOYOFUKU; Takeshi OBI; Takehisa CHUMA

doi:10.1292/jvms.20-0096

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Increased Salmonella Schwarzengrund prevalence and antimicrobial susceptibility of Salmonella enterica isolated from broiler chickens in Kagoshima Prefecture in Japan between 2013 and 2016

Vu Minh DUC, Jiye SHIN, Yamato NAGAMATSU, Ayaka FUHIWARA, Hajime TOYOFUKU, Takeshi OBI, Takehisa CHUMA

著者情報

キーワード: antimicrobial susceptibility, broiler chicken, kanamycin resistance gene, Salmonella, Salmonella Schwarzengrund

ジャーナルオープンアクセス早期公開

論文ID: 20-0096

DOI https://doi.org/10.1292/jvms.20-0096

この記事には本公開記事があります。

The final version of this article is now available: Vol. 82 (2020), No. 5 pp. 585-589

詳細

抄録

This study aimed to analyze the Salmonella serovars, measure the minimum inhibitory concentration of antimicrobials, and examine the antimicrobial resistance genes of Salmonella isolated from 192 broiler flocks in Kagoshima Prefecture in Japan, from 2013 to 2016. We found that all Salmonella isolates belonged to three serovars: Salmonella Manhattan, S. Infantis,and S. Schwarzengrund. Among them, S. Schwarzengrund prevalence has recently increased annually making the main serovar. Most recovered isolates were highly resistant to streptomycin, sulfamethoxazole, and oxytetracycline. We saw the reduction of third-generation cephalosporin resistance and identified the reason of increased kanamycin resistance to be the increased number of S. Schwazengrund isolates. Among the kanamycin-resistant Salmonella isolates, aphA1 constituted the main resistance gene detected.

責任著者(Corresponding author)

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