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Research Note : Antimicrobial resistance of Campylobacter species isolated from chickens near Ulaanbaatar city, Mongolia

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Title: Research Note : Antimicrobial resistance of Campylobacter species isolated from chickens near Ulaanbaatar city, Mongolia
Authors: Byambajav, Zolzaya Browse this author
Bulgan, Erdenebat Browse this author
Hirai, Yuji Browse this author
Nakayama, Momoko Browse this author
Tanaka, Misaki Browse this author
Nitta, Yurika Browse this author
Suzuki, Akio Browse this author
Umemura, Takashi Browse this author
Altankhuu, Bold Browse this author
Tsagaan, Alimaa Browse this author
Vanaabaatar, Batbaatar Browse this author
Janchivdorj, Erdenebaatar Browse this author
Purevdorj, Nyam-Osor Browse this author
Ayushjav, Narantuya Browse this author
Yamasaki, Takeshi Browse this author →KAKEN DB
Horiuchi, Motohiro Browse this author →KAKEN DB
Keywords: antimicrobial resistance
Campylobacter
fluoroquinolone
Mongolia
Issue Date: Mar-2021
Publisher: Elsevier
Journal Title: Poultry Science
Volume: 100
Issue: 3
Start Page: 100916
Publisher DOI: 10.1016/j.psj.2020.11.079
Abstract: There has been no report on the prevalence of Campylobacter spp. in farm animals in Mongolia. To uncover the prevalence of Campylobacter spp. in chickens in Mongolia and their antimicrobial resistance, in this study, we isolated and characterized Campylobacter spp. from chickens in Mongolia. We collected 71 cloacal swabs of chickens from 5 farms including 4 layer farms and one broiler farm near Ulaanbaatar city and isolated 25 Campylobacter jejuni and 6 Campylobacter coli isolates. All isolates were resistant to tetracycline, and 3 C. coli isolates were resistant to erythromycin. The C. coli isolates possessed either the erm(B) gene or nucleotide substitution at nt 2,075 of 23S rDNA, both of which are known to be associated with erythromycin resistance. Sixteen of the 31 C. jejuni/C. coli isolates (51.6%) were resistant to nalidixic acid and fluoroquinolones. All the fluoroquinolone-resistant isolates possessed amino acid substitution from threonine to isoleucine at codon 86 (nucleotide substitution: ACA to ATA). Multilocus sequence typing and phylogenetic analyses showed a variation in C. jejuni/C. coli in chickens in Mongolia. In addition, some of the C. jejuni isolates seemed to be phylogenetically close to isolates in Asian and Oceanian countries. This is the first report on the characterization of antimicrobial resistance of Campylobacter spp. in farm animals in Mongolia and is valuable for implementation of measures for a prudent use of antimicrobials in farm animals.
Type: article
URI: http://hdl.handle.net/2115/81354
Appears in Collections:国際連携研究教育局 : GI-CoRE (Global Institution for Collaborative Research and Education : GI-CoRE) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

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