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Tetracycline resistance potential of heterotrophic bacteria isolated from freshwater fin-fish aquaculture system

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Title Tetracycline resistance potential of heterotrophic bacteria isolated from freshwater fin-fish aquaculture system
Not Available
 
Creator Ahamed Basha, K.
Mogilipuri, S. S.
Dhamodher Moturu
Manikantha Benala
Murugadas, V.
Panda, S. K.
Joshy, C. G.
Madhusudana Rao, B.
 
Subject aquaculture
fish
antibiotics
tetracycline
food safety
antimicrobial resistance
 
Description Not Available
Aims
This study investigated the tetracycline resistance potential of heterotrophic bacteria isolated from twenty-four freshwater fin-fish culture ponds in Andhra Pradesh, India.

Methods and results
A total of 261 tetracycline resistant bacteria (tetR) were recovered from pond water, pond sediment, fish gills, fish intestine, and fish feed. Bacteria with high tetracycline resistance (tetHR) (n = 30) that were resistant to tetracycline concentrations above 128  μg mL−1 were predominantly Lactococcus garvieae followed by Enterobacter spp., Lactococcus lactis, Enterobacter hormaechei, Staphylococcus arlettae, Streptococcus lutetiensis, Staphylococcus spp., Brevundimonas faecalis, Exiguobacterium profundum, Lysinibacillus spp., Stutzerimonas stutzeri, Enterobacter cloacae, and Lactococcus taiwanensis. Resistance to 1024 μg mL−1 of tetracycline was observed in L. garvieae, S. arlettae, Enterobacter spp., B. faecalis. Tet(A) (67%) was the predominant resistance gene in tetHR followed by tet(L), tet(S), tet(K), and tet(M). At similar concentrations of exposure, tetracycline procured at the farm level (69.5% potency) exhibited lower inhibition against tetHR bacteria compared to pure tetracycline (99% potency). The tetHR bacteria showed higher cross-resistance to furazolidone (100%) followed by co-trimoxazole (47.5%) and enrofloxacin (11%).

Conclusions
The maximum threshold of tetracycline resistance at 1024 μg mL−1 was observed in S. arlettae, Enterobacter spp., B. faecalis, and L. garvieae and tet(A) was the major determinant found in this study.
Not Available
 
Date 2023-10-25T17:14:47Z
2023-10-25T17:14:47Z
2023-04
 
Type Research Paper
 
Identifier Ahamed Basha, K., Mogilipuri, S. S., Dhamodher Moturu, Manikantha Benala, Murugadas, V., Panda, S. K., Joshy, C. G., Madhusudana Rao, B. (2023) Tetracycline resistance potential of heterotrophic bacteria isolated from freshwater fin-fish aquaculture system. Journal of Applied Microbiology, 134 (4): lxad060.
1364-5072
http://krishi.icar.gov.in/jspui/handle/123456789/80828
 
Language English
 
Relation Not Available;
 
Publisher Oxford Academic