Substitution of Water Hyacinth Flour (Eichhornia crassipes) in Feed on The Growth Performance of Bileh Fish (Rasbora sp.)

Abstract

The objective of the present study was to determine the optimal dose substitution of water hyacinth flour (Eichhornia crassipes) in feed on the growth performance of Bileh (Rasbora sp.) fingerlings. The Completely Randomized Design (CRD) used in this study consisted of four treatments and three replications. Four doses of Eichhornia crassipes were tested: P0 = Feed without substitution of fermented water hyacinth flour as control, P1 = The substitution of fermented water hyacinth flour 5% in feed, P2 = The substitution of fermented water hyacinth flour 10 % in feed, P3 = The substitution of fermented water hyacinth flour 15% in feed. Bileh used as test fish have a length range of 2-2,5 cm. Feed was given three times with at satiation method. Bileh is stored for 30 days. The results showed that the absolute weight growth, absolute length growth, specific growth rate, and feed efficiency were higher in substituting 15% water hyacinth flour in Feed (P3). However, the substitution of water hyacinth flour in Feed had no significant effect on the survival rate and daily growth rate of bileh (P>0.05). The best dose of substitution of water hyacinth flour to increase the growth of Bileh fish and is more economical is 15% in Feed.