Intestinal Bacterial Flora of macrobrachium rosenbergii (de man, 1879) from freshwater farms in Kerala, India
Intestinal Bacterial Flora of macrobrachium rosenbergii (de man, 1879) from freshwater farms in Kerala, India
Date
2010
Authors
Lalitha, K.V.
Surendran, P.K.
Thampuran, N.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India), Cochin
Abstract
The bacterial flora in the intestine of farmed Macrobrachium rosenbergii (De Man, 1879)
were examined qualitatively and quantitatively. Prawn intestine samples were analysed for total plate count, H2S producing bacteria, faecal Streptococci, total coliforms, faecal coliforms, Escherichia coli and Staphylococcus aureus. The counts of the intestinal microflora of prawn were in the range of 107 to 108 cfu g-1. Total coliform, faecal coliform and Escherichia coli levels were ° 3.0 log10 MPN g-1. The number of H2S producers ranged from 105 to 107 cfu g-1. Faecal Streptococci had a range of 103 to 106 cfu g-1. The counts of H2S producers, faecal coliforms, E.coli and faecal Streptococci varied widely between the farms. The dominant intestinal microflora belonged to genera Aeromonas, Citrobacter, Enterobacter, Serratia, Klebsiella, Pseudomonas and Bacillus. While Acinetobacter, Shewanella, Streptococcus, Micrococcus, Staphy- lococcus and Lactobacillus were found in lower frequencies. High counts of faecal coliform bacteria and Streptococci in the intestine of farmed freshwater prawn indicates lack of good farm management practices in the fresh water farms studied.
Description
Keywords
Macrobrachium rosenbergii, intestinal flora, freshwater farm, indicator bacteria, enterobacteriaceae, aeromonadaceae
Citation
Fishery Technology 2010: 47(1), 65-70