Quantitative and qualitative analyses of the bacterial microbiota of tilapia (Oreochromis niloticus) cultured in earthen ponds in the Philippines
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Date
2015Page views
4,967Subject
fish diseases
bacterial diseases
pond culture
brackishwater fishes
bottom culture
fish culture
ponds
gills
stocking ponds
intestines
brackish water
epizootics
sediment
Pseudomonas fluorescens
Vibrio cholerae
Plesiomonas shigelloides
Staphylococcus
Aeromonas hydrophila
Bacillus
Oreochromis niloticus
Philippines
gram negative bacteria

bacterial diseases

pond culture

brackishwater fishes

bottom culture

fish culture

ponds

gills

stocking ponds

intestines

brackish water

epizootics

sediment

Pseudomonas fluorescens

Vibrio cholerae

Plesiomonas shigelloides

Staphylococcus

Aeromonas hydrophila

Bacillus

Oreochromis niloticus

Philippines

gram negative bacteria

Taxonomic term
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Abstract
The quantity and composition of the bacterial microbiota in the rearing water, sediment, gills and intestines of tilapia Oreochromis niloticus collected every 2 weeks from Day 30 to Day 120 after stocking for grow-out culture in 6 earthen brackish water ponds in the Philippines were examined. The total heterotrophic aerobic bacterial counts obtained in the water, sediment, gills and intestines of tilapia ranged from 103 to 104 c.f.u. ml−1, 103–105, 105–107 and 104–107 c.f.u. g−1, respectively. In terms of composition, a total of 20 bacterial genera and 31 species were identified with the preponderance of gram-negative bacteria constituting 84% of all bacterial isolates examined. Aeromonas hydrophila, Bacillus spp., Plesiomonas shigelloides, Shewanella putrefaciens, Pseudomonas fluorescens, Staphylococcus spp. and Vibrio cholerae were the dominant bacteria identified in the gills and intestine of tilapia. These bacteria also dominated in the pond sediment and rearing water, except for the nil isolation of S. putrefaciens and V. cholerae in the water samples examined, indicating that resident bacteria in the pond water and sediment congruently typify the composition of bacterial microbiota in the gills and intestine of tilapia which under stressful conditions may propel the ascendance of disease epizootics.
Suggested Citation
Pakingking , Jr., Palma, P., & Usero, R. (2015). Quantitative and qualitative analyses of the bacterial microbiota of tilapia (Oreochromis niloticus) cultured in earthen ponds in the Philippines. World Journal of Microbiology and Biotechnology , 31(2), 265-275. https://doi.org/10.1007/s11274-014-1758-1
Type
ArticleISSN
0959-3993; 1573-0972Collections
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