Author(s): Md. Marufujjaman Mithu, Md. Golam Rabbane, Md. Abdul Khaleque and Md. Ghulam Mustafa

Abstract: The present study evaluated the effects of three formulated feed with three different protein (30%, 36% and 40%) levels on the growth performance and feed utilization efficiencies of snakehead Channa striatus juveniles. Results of the current study showed that feed 2 (36% protein) had significant positive effects on the feed conversation ratio (FCR), average daily gain (ADG), feed efficiency and condition factor while no such differences were observed in specific growth rate (SGR) and in feed utilization efficiency variables. Significantly lowest FCR (1.39 ± 0.26) was recorded in feed 2. Significantly highest ADG (0.20 ± 0.01 g/d), Feed efficiency (90.81±14.06 %) and protein efficiency ratio (2.26 ± 0.35 %) were measured in feed 2 fish fed 36% protein containing formulated feed. But no significant differences were reported in condition factor, specific growth rate and survival rate among different formulated feeds. Findings of the present study suggest that 36% protein containing formulated feed could be used for better growth and feed utilization efficiencies of snakehead Channa striatus juveniles.

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