Antimicrobial Susceptibility Profiles of Bacteria Commonly Isolated from Farmed Salmonids in Atlantic Canada (2000-2021)

被引:5
作者
Ojasanya, Rasaq Abiola [1 ]
Gardner, Ian A. [1 ]
Groman, David B. [2 ]
Saksida, Sonja [1 ]
Saab, Matthew E. [2 ]
Thakur, Krishna Kumar [1 ]
机构
[1] Univ Prince Edward Isl, Atlantic Vet Coll, Dept Hlth Management, Charlottetown, PE C1A 4P3, Canada
[2] Univ Prince Edward Isl, Atlantic Vet Coll, Aquat Diagnost Serv, Charlottetown, PE C1A 4P3, Canada
关键词
antimicrobial resistance; antimicrobial susceptibility; bacterial isolates; salmon; Atlantic Canada; aquaculture; TROUT ONCORHYNCHUS-MYKISS; RENIBACTERIUM-SALMONINARUM; ANTIBIOTIC SUSCEPTIBILITY; AEROMONAS-HYDROPHILA; RESISTANCE; FISH; STRAINS; EFFLUX; SALAR;
D O I
10.3390/vetsci9040159
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Bacterial infection and antimicrobial resistance are important constraints in the production and sustainability of farmed salmonids. This retrospective study aimed to describe the frequency of bacterial isolates and antimicrobial resistance profiles in salmonid aquaculture in Atlantic Canada. Bacterial isolates and antimicrobial susceptibility testing (AST) results assessed by disk diffusion testing were summarized for 18,776 Atlantic salmon (Salmo salar) and rainbow trout (Oncorhynchus mykiss) samples from 2291 unique cases submitted to the Atlantic Veterinary College, Aquatic Diagnostic Services Bacteriology Laboratory from 2000 to 2021. Kidney was the most commonly submitted tissue (60.29%, n = 11,320), and these specimens were mostly submitted as swabs (63.68%, n = 11,957). The most prevalent pathogens detected in these cases were Yersinia ruckeri type 1 (5.54%, n = 127), Renibacterium salmoninarum (2.10%, n = 48), Aeromonas salmonicida (atypical) (1.66%, n = 38), and Pseudomonas fluorescens (1.22%, n = 28). Most bacterial isolates tested (n = 918) showed resistance to florfenicol, oxytetracycline, ormetoprim-sulfadimethoxine, and trimethoprim-sulfamethoxazole, but not to enrofloxacin. This report provides baseline data for antimicrobial surveillance programs that investigate emerging antimicrobial resistance trends in salmonid aquaculture in Atlantic Canada.
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页数:15
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