Author:
M.R. Anizah,Manaf S.R.,M.J.N. Hilaliyah
Abstract
Fish meal is generally expended as the foremost protein supply in the fish diet. The rising
cost of this component inflicted the aquaculture industry to seek a substitute in lessening
the pellet cost. Thus, fish waste was tested in this study to investigate its viability. An
experiment was performed to study the effects of fish waste and carcass on the growth
performance of Nile tilapia fry. Solid fish waste of three different common species
available in Mukah’s wet market was formulated into an artificial diet. The diet was
formulated into three treatments consist of three protein levels (40%, 45% and 50%) with
4000 kcal/kg energy. A controlled group was fed with a commercial pellet consisting of
45% protein level. Fish were fed at 4% of body weight twice daily for 45 days. Fry reared
in a controlled group was discovered highest weight gain, specific growth rate and length
gain. There was no significant difference in all treatments for all parameters measured.
The lowest weight gain and specific growth rate were recorded in fish fed 45% protein
level (T2) group. Fish in T3 (50%) achieved the highest survival rate while T1 (40%)
group recorded the lowest. The best and lowest Feed Conversion ratio (FCR) was
recorded in the control group. In conclusion, the performance of formulated feed using
fish waste is similar to commercial pellet as no significant difference can be observed in
all parameters measured.
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