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Reviews in Fish Biology and Fisheries

, Volume 22, Issue 1, pp 11–16 | Cite as

Microflora in fish digestive tract plays significant role in digestion and metabolism

  • S. GangulyEmail author
  • A. Prasad
Reviews

Abstract

Microflora of the environment plays an important role in the formation of the microflora of the digestive tract of fishes (Strom and Olafsen Microbiology of poecilotherms Elsevier, Amsterdam, pp 181–185 1990; Hansen et al. Appl Environ Microbiol 58:461–470 1992). Compared to water, digestive tract is an ecosystem far richer in nutrients and therefore more favorable for the growth of the majority of bacteria. Definitely, not all bacteria in food which gain entry in the digestive tract of fishes establish themselves there (Yan-Bo Wang et al. Aquaculture 281(1–4): 1–4 2008). Part of them adapts themselves in the digestive tract, whereas the others are digested by the enzymes produced by the host organism. Microorganisms present in the digestive tract feed on the food of the host organism which is digested by the enzymes produced by them and by the latter. ‘Chymous’ gets formed which decides the abundance and qualitative composition of microorganisms present in digestive tract.

Keywords

Bacteria Digestive tract Fishes Microflora Microorganisms 

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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.All India Coordinated Research Project on Post Harvest Technology (Kolkata Centre), Department of Fish Processing Technology, Faculty of Fishery SciencesWest Bengal University of Animal and Fishery SciencesKolkataIndia
  2. 2.Department of Veterinary Microbiology, Faculty of Veterinary Science & Animal HusbandryBirsa Agricultural UniversityRanchiIndia

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