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Prevalence, Antimicrobial resistance and Virulence profile of Salmonella from Aquaculture farms of central Kerala, India

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Title Prevalence, Antimicrobial resistance and Virulence profile of Salmonella from Aquaculture farms of central Kerala, India
Not Available
 
Creator Greeshma, S. S.
Devika Pillai
Mathew Sebastian
Joseph, T.C.
 
Subject Salmonella
aquaculture
S. Typhimurium
antibiotic sensitivity
virulence
 
Description Not Available
Salmonella belonging to Enterobacteriaceae is considered as the leading cause of food borne illness all
over the world and products from aquaculture often
act as vehicles of their transmission. In this study,
a total of 150 samples including mud, water, fish/
shrimp and feed from 38 aquaculture farms from
three districts of central Kerala viz., Thrissur,
Ernakulam and Kottayam were screened for the
presence of Salmonella. The overall prevalence of
Salmonella in aquaculture farms was 7.9%. By
serotyping, 100% of Salmonella isolates from
aquaculture were identified as Salmonella enterica
subspecies enterica serovar Typhimurium with
antigenic formulae 4,5,12: i: 1,2. None of the shrimp
farms selected in this study harboured Salmonella.
Antibiotic sensitivity testing revealed that 100% of
S. Typhimurium were sensitive to the 17 antibiotics
tested. Screening of the S. Typhimurium isolates for
11 virulence genes; invA, fimA, stn, spvC, sopB, mgtC,
bcfC, csgD, avrA, hilA and phoP/phoQ belonging to
Salmonella Pathogenicity Islands (SPI) 1 to 5 by PCR
revealed that the isolates carried all the virulence
genes except spvC gene, indicating its pathogenic
potential. This study suggests that finfish farms are
probable reservoirs of Salmonella with high virulence
potential and can pose a potential threat to public
health safety. Proper policies and regulations are to
be adopted to control the occurrence of Salmonella
in finfish culture systems.
Not Available
 
Date 2022-01-05T04:24:09Z
2022-01-05T04:24:09Z
2021-10
 
Type Research Paper
 
Identifier Greeshma, S. S., Devika Pillai, Mathew Sebastian and Toms C. Joseph (2021) Prevalence, Antimicrobial resistance and Virulence profile of Salmonella from Aquaculture farms of central Kerala, India. Fish. Techol. 58 (4):239-245.
0015-3001
http://krishi.icar.gov.in/jspui/handle/123456789/68497
 
Language English
 
Relation Not Available;
 
Publisher Society of Fisheries Technologists (India)