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• Prevalence of Aeromonas hydrophila in fish and prawns from the seafood market of Coimbatore, South India

  Hatha, A A M; Vivekanandhan, G; Lakshmanaperumalsamy, P (Elsevier, January 26, 2004)

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  Abstract:	Five hundred and thirty six samples offishes and 278 prawn samples from the major fish market ofCoimbatore, South India, were analysed for the prevalence of Aeromonas hydrophila over a period of2 years (June 1997–May 1999). The prevalence level of A. hydrophila varied from 17.62% in prawns to 33.58% in fishes. More than 30% of the popular table fishes such as Sardinella longiceps, Rastrelliger kanagurta, Mugil cephalus and Caranx sexfasciatus were tested positive for this organism. Among the different species of the prawns analysed, Penaeus semisulcatus showed higher incidence (23.52%). Seasonal variation in the prevalence levels of A. hydrophila in fish and prawns revealed a higher prevalence during the monsoon season during 1997–98 and 1998–99. Of the different body parts of the fishes analysed for A. hydrophila, the intestinal samples showed higher prevalence (38.43%), followed by body surface (32.46%) and gill (29.10%). Considering the psychrotrophic nature and role of A. hydrophila as a pathogen ofemerging importance, the considerably high levels ofthis organism in a popular food item such as fish and prawn raises serious concern
  Description:	Food Microbiology 22 (2005) 133–137
  URI:	http://dyuthi.cusat.ac.in/purl/3965

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• Antibiotic resistance of Aeromonas hydrophila isolated from marketed fish and prawn of South India

  Hatha, A A M; Vivekanandhan, G; Savithamani, K; Lakshmanaperumalsamy, P (Elsevier, November 27, 2001)

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  Abstract:	A total of 319 strains of Aeromonas hydrophila were isolated from 536 fish and 278 prawns for a 2-year period. All the strains were tested for resistance to 15 antibiotics and 100% of the strains was resistant to methicillin and rifampicin followed by bacitracin and novobiocin (99%). Only 3% of the strains exhibited resistance against chloramphenicol. The multiple antibiotic resistance (MAR) indexing of A. hydrophila strains showed that all of them originated from high-risk sources
  Description:	International Journal of Food Microbiology 76 (2002) 165– 168
  URI:	http://dyuthi.cusat.ac.in/purl/3964

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  Antibiotic resi ... d prawn of South India.pdf	(72.39Kb)

• The incidence ,Antibiotic resistence and survival of salmonella and escherichia coli isolated from broiler chicken retail outlets

  Hatha, A A M; Suresh, T; Srinivasan, D; Lakshmanaperumalsamy, P (Microbes And Enviornments, June 19, 2000)

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  Abstract:	The incidence of salmonella and escherichia coli in chicken retail outlets in a residential area of coimbatore, Tamilnadu India was studied with the view that accessories may be a source of cross contamination.Accessories like cages,knives ,chopping boards weighing balance trays and the hands of butcher were examined.A toatal of 14 salmonella as well as 31 E.coli were isolated from different sources. The incidence of E.coli was higher than that of Salmonella.The highest incidence of Salmonella was found in chopping boards and the maximum level of E.Coli was detected in cages.
  Description:	Microbes and Enviornments,Vol.15,No.3,173-181,2000
  URI:	http://dyuthi.cusat.ac.in/purl/3963

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  The incidence , ... chicken retail outlets.pdf	(508.9Kb)

• Prevalence and antimicrobial resistance of Salmonella enteritidis and other salmonellas in the eggs and egg-storing trays from retails markets of Coimbatore, South India

  Hatha, A A M; Suresh, T; Sreenivasan, D; Nathan, Sangeetha; Lakshmanaperumalsamy, P (Elsevier, April 8, 2005)

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  Abstract:	A study was conducted to determine the incidence of Salmonella enterica serovar Enteritidis and other Salmonella serovars on eggshell, egg contents and on egg-storing trays. A total of 492 eggs and 82 egg-storing trays were examined over a period of 1 year from different retail outlets of a residential area of Coimbatore city, South India. Salmonella contamination was recorded in 38 of 492 (7.7%) eggs out of which 29 was in eggshell (5.9%) and 9 in egg contents (1.8%). Around 7.5% of the egg-storing trays were also found to be contaminated with Salmonella. Serotyping of the Salmonella strains showed that 89.7% of the strains from eggshell, 100% of the strains from egg contents and 71.4% of the strains from egg-storing trays were Salmonella Enteritidis. Other serovarvars encountered were S. Cerro, S. Molade and S. Mbandaka from eggshell and S. Cerro from egg-storing trays. Seasonal variations in the prevalence pattern were identified with, a higher prevalence during monsoon months followed by post-monsoon and premonsoon. Further examination of the Salmonella strains was carried out by testing their antimicrobial sensitivity against 10 commonly used antimicrobials. Results revealed high prevalence of multiple antimicrobial resistance among these strains suggesting possible prior selection by use of antimicrobials in egg production
  Description:	Food Microbiology
  URI:	http://dyuthi.cusat.ac.in/purl/3962

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  Prevalence and ... oimbatore, South India.pdf	(195.8Kb)

• Relative survival of Escherichia coli and Salmonella typhimurium in a tropical estuary

  Hatha, A A M; Abirosh, Chandran (Elsevier, January 11, 2005)

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  Abstract:	Microcosm studies have been carried out to find out the relative survival of Escherichia coli and Salmonella typhimurium in a tropical estuary. Survival has been assessed in relation to the important self-purifying parameters such as biotic factors contained in the estuarine water, toxicity due to the dissolved organic and antibiotic substances in the water and the sunlight. The results revealed that sunlight is the most important inactivating factor on the survival of E. coli and S. typhimurium in the estuarine water. While the biological factors contained in the estuarine water such as protozoans and bacteriophages also exerted considerable inactivation of these organisms, the composition of the water with all its dissolved organic and inorganic substances was not damaging to the test organisms. Results also indicated better survival capacity of E. coli cells under all test conditions when compared to S. typhimurium
  Description:	Water Research
  URI:	http://dyuthi.cusat.ac.in/purl/3961

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  Relative surviv ... in a tropical estuary.pdf	(221.5Kb)

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