Antibiotic resistance profiles of sentinel bacteria isolated from aquaculture in Cambodia

Peng Chanthol, Moniroth Sopheavattey, Khy Panha, Chea Sopheaktra, Thanh Channmuny, Heng Oudam, Sarter Samira, Cheng Sokleaph, Caruso Domenico. 2024. Antibiotic resistance profiles of sentinel bacteria isolated from aquaculture in Cambodia. Journal of Water and Health, 22 (6) : 1033-1043.

Résumé : The misuse of antibiotics and the emergence of antimicrobial resistance (AMR) is a concern in the aquaculture industry because it contributes to global health risks and impacts the environment. This study analyzed the AMR of sentinel bacteria associated with striped catfish (Pangasisanodon hypophthalmus) and giant snakehead (Channa micropeltes), the two main fish species reared in the pond culture in Cambodia. Phenotypic and genotypic characterization of the recovered isolates from fish, water, and sediment samples revealed the presence of bacteria, such as 22 species belonging to families Aeromonadaceae, Enterobacteriaceae, and Pseudomonadaceae. Among 48 isolates, Aeromonas caviae (n = 2), Aeromonas hydrophila (n = 2), Aeromonas ichthiosmia (n = 1), Aeromonas salmonicida (n = 4) were detected. A. salmonicida and A. hydrophilla are known as fish pathogens that occur worldwide in both fresh and marine water aquaculture. Antibiotic susceptibility testing revealed antibiotic resistance patterns of 24 (50 %) isolates among 48 isolates with higher multiple antibiotic resistance index (> 0.2). All the isolates of Enterobacteriaceae were susceptible to ciprofloxacin. Ciprofloxacin is a frontline antibiotic that is not recommended to use in aquaculture. Therefore, its use has to be strictly controlled. This study expands our knowledge of the AMR status in aquaculture farms which is very limited in Cambodia.

Mots-clés Agrovoc : aquaculture, Enterobacteriaceae, Résistance aux antibiotiques, antibiotique, culture du poisson-chat, Aeromonas salmonicida, résistance aux antimicrobiens, Channa, étang d'alevinage, Cavia, pisciculture, Aeromonas, Aeromonas hydrophila, élevage en étang

Mots-clés géographiques Agrovoc : Cambodge

Mots-clés libres : Antibiotic-resistant, Aquaculture, Cambodia, Giant snakehead, Multiple antibiotic, Resistance index, Striped catfish

Agences de financement hors UE : Ministère de l'Europe et des Affaires Étrangères

Projets sur financement : (FRA) AQUACAM-FSPI

Auteurs et affiliations

• Peng Chanthol, Institut de technologie du Cambodge (KHM) - auteur correspondant
• Moniroth Sopheavattey, Institut de technologie du Cambodge (KHM)
• Khy Panha, Institut de technologie du Cambodge (KHM)
• Chea Sopheaktra, Institut de technologie du Cambodge (KHM)
• Thanh Channmuny, Institut de technologie du Cambodge (KHM)
• Heng Oudam, Institut de technologie du Cambodge (KHM)
• Sarter Samira, CIRAD-PERSYST-UMR ISEM (FRA) ORCID: 0000-0001-5115-0824
• Cheng Sokleaph, Institut Pasteur du Cambodge (KHM)
• Caruso Domenico, IRD (FRA)

Source : Cirad-Agritrop (https://agritrop.cirad.fr/610503/)

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