Author(s): Ayan Samaddar

Abstract: Fishmeal (FM), serves as the prime source of dietary protein in the formulated feed of carps and catfish. However, FM is a costly ingredient in the formulated feed and is being gradually scarce due to continuous growth in aquaculture with subsequent requirement of FM in the formulation of feed and demand of FM in other animal husbandry resources. Therefore, in recent years intensive researches have been conducted to search less expensive alternative protein sources among plant and animal wastes in order to reduce aquaculture production cost. However, there are inherent problems of using these wastes as feed stuff including poor digestibility and cross contamination by hazardous microorganisms. Fermentation has been found to be a convenient, environment friendly and cost effective technique to remove these difficulties and render the wastes as suitable supplement to replace FM in fish feed formulation The main objectives of this review was to explore possibilities of utilizing abundantly available organic wastes as feed stuff to replace FM in the formulation of feed for fish after processing through microbial fermentation, to find out a cost effective pathway for aquaculture industry.

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