Bacterial Flora of the Intestines of Farm Raised Freshwater Fishes Catla catla, Labeo rohita and Ctenopharyngodon idella
Bacterial Flora of the Intestines of Farm Raised Freshwater Fishes Catla catla, Labeo rohita and Ctenopharyngodon idella
Date
2000
Authors
Hatha, A;A.M
Kuruvilla, Seena
Cheriyan, Synobia
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)Cochin
Abstract
Bacterial flora associated with the intestines of farm raised freshwater fishes such as
Labeo rohita, Catla catla and Ctenophan/ngodon idella have been analysed. The mean population
of total heterotrophic bacteria (THB) of the intestine of L. rohita was 3.2xl06 colony forming
units (CFU) per gram and that of C. catla and C. idella were 4.79x10'' and 1.13xl07 CFU
respectively. Morphological and physiological grouping of the isolates revealed dominance
of gram negative rod shaped bacteria capable of elaborating various hydrolytic enzymes such
as amylase, lipase and gelatinase. Ureolytic forms were relatively few. Characterisation of
the genera revealed the dominance of Aeromonas in the intestine of these fishes. Other genera
encountered were Corynebacterium, Micrococcus, Alcaligenes, Vibrio, Moraxella, Bacillus,
Lactobacillus, Acinetobacter, Flavobacterium and members of the family Enterobacteriaceae.
Description
Keywords
Bacterial flora, freshwater fish, intestine
Citation
Fishery Tech 37(1):59-62