Assessment of natural organic waste for aquafeed formulation (Coconut waste)

Ottilia, Ang Pey wi (2022) Assessment of natural organic waste for aquafeed formulation (Coconut waste). [Final Year Project Report] (Unpublished)

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Abstract

The growing demand for fish feed in the aquaculture sector results in an annual increase in feed costs. Copra meal can be used in place of aquafeed in aquaculture; the nutritional content is almost identical. However, as copra meal contains a considerably large amount of crude fibre, efforts must be made to lower crude fibre content by Solid-State Fermentation (SSF) with the microbe Rhizopus sp., which generates cellulase enzymes. This study aims to analyze the chemical composition of unprocessed and processed coconut wastes, to analyze the nutritional makeup of coconut wastes, to formulate aquaculture feed from the treated coconut wastes, and to evaluate the effect of the experimental diets on the animal model. The experiment used fermented, dried, and powdered copra meal at concentrations of (A) 10%, (B) 20%, and (C) 30% in the feed. A daily test meal was administered to the fish at a frequency of once daily. An ANOVA was performed on the digestibility data acquired in this study. The coconut-based experimental meal with 15% inclusion performed the best in terms of body weight increase (0.49 g), with no significant difference (P > 0.05) reported when compared to the control treatment (0.30 g). This shows that solid coconut wastes have a higher potential for utilization as the primary protein source in aquaculture feed composition. Coconut waste could be used as an alternative aquafeed in aquaculture.

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