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Bacterial microflora associated with farmed freshwater prawn Macrobrachium rosenbergii (de Man) and the aquaculture environment

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Title Bacterial microflora associated with farmed freshwater prawn Macrobrachium rosenbergii (de Man) and the aquaculture environment
Not Available
 
Creator Lalitha, K. V.
Surendran, P. K
 
Subject Farmed freshwater prawn
Macrobrachium rosenbergii
Aquaculture environment
Microflora
Indicator bacteria
 
Description Not Available
The initial counts of bacteria associated with farmed giant freshwater prawn (Macrobrachium rosenbergii de Man) as well as with the water and sediment from two farms located at Kottayam district in Kerala (India) were determined. A total of 367 randomly selected isolates were characterized and identified. Prawn samples yielded mean microbiological counts of 4.92 log CFU g−1 of shell with muscle and 7.78 log CFU g−1 of intestine at 30°C. Bacterial numbers in the intestine of prawn were much higher than those in the pond water. Motile and non-motile aerobic Gram-negative bacteria together with Enterobacteriaceae accounted for 60–70% of the mesophiles isolated from water and prawn. However, the microorganisms isolated in significant numbers from shell with muscle and intestine of prawn were not recovered from the growing waters. Among Gram-positive bacteria, Micrococcus, Bacillus, coryneforms, and Arthrobacter were found. Faecal coliforms and enterococci were found in significant numbers in M. rosenbergii. The rearing practices such as feeding and pond fertilization could have influenced the microflora in prawn. The commensal microflora of freshwater prawn included opportunistic pathogens such as Aeromonas spp. and Streptococcus spp. Storage of prawn at elevated temperatures can permit their survival and growth leading to quality loss. Care should be exercised during handling and processing to prevent contamination of edible meat.
Not Available
 
Date 2024-06-08T18:29:03Z
2024-06-08T18:29:03Z
2004-04
 
Type Research Paper
 
Identifier Lalitha, K. V. and Surendran, P. K. (2004) Bacterial microflora associated with farmed freshwater prawn Macrobrachium rosenbergii (de Man) and the aquaculture environment. Aquaculture Res. 35(7):629-635.
1355-557X
http://krishi.icar.gov.in/jspui/handle/123456789/83373
 
Language English
 
Relation Not Available;
 
Publisher Wiley