Utilization of Freshwater Snail Flour in Paste Feed as a Protein Source for Growth and Survival Rate of Green Catfish(Mystus nemurus C.V) Larvae

Abstract

A research was conducted from August until October 2012 at Fish Hatchery and Breeding Laboratory, Fisheries and Marine Science Faculty Riau University. Its aimwas to evaluate replacement of protein source from fish flour (FF) to freshwater snail flour (FS) on greencatfish larval rearing. Combination of the diet used in this studywere: P0 (0% GF, 100% FF), P1 (25% GF, 75% FF), P3 (50% GF, 50% FF), P4 (75% GF, 25%FF), and P5 (100%GF, 0% FF). The larvae were rearing in 15 litre aquarium for 40 days at stocking density 2 larvae/l. Feeding was given 3 times/day. Freshwater snail flour can be replaced fish meal as a protein source paste feed in fish larvae rearing of green catfish. Replacement of freshwater snail flour to fish meal can be done up to 50-100% resulting weight growth 0.89 to 1.16 g, length growth rate 3.7 to 4.0 cm, daily growth rate 9.52 to 10.19% and survival rate 69-75%.A 100% freshwater snail flour was the the most efficient paste feed to produce 40 days green catfish larvae.