THE EFFECT OF FISH WASTE FEED FOR GROWING THE MUD CRAB Scylla serrata IN CILACAP CENTRAL JAVA

• Main Author: Muhlis
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/35982
• Institution: Institut Teknologi Bandung

The mud crab Scylla serrata is a natural resource in coastal area, which has a highly economic value. The demands of mud crab are mostly fulfilled by a natural capture. For the sustainable production of this crab, it is important be develop an intensively grow out culture for the mud crab. This study applied a simple technology for growing the mud crab by using a polyethylene tube (with diameter 20 cm and height 60 cm) and the crabs were fed with the wastes of wet and dry fish. The purpose of this study was to know the effect of fish waste feed on the growth of the mud crab S. serrata. This study used a factorial completely randomized design with treatments as the wet and dry feed cocentrations (3 %, 5 % and 7 % of crab’s weight ), and as sex treatments: male and female. The results of this study showed that treatment with fish waste feed had a positif effect for growing the mud crabs. The treatment with 5 % of wet fish waste feed showed the highiest increasing of body weight and the lowest body weight was found by treatment with 3 % wet fish waste feed on male of mud crab. Based on the body weight increasing, treatment with a different concentrations of feed and sex showed that there was significantly different (P ? 0.05) for all treatments. The daily growth rate was significantly different for 3 % and 5 % treatments, but treatment with 5 % dan 7 % was not significantly different. The survival rate for all treatments was average 91.6 % . The FCR value showed that the lowest was 0,7 for the 3 % dry fish waste feed and the highest was 6.0 for the treatment of 7 % wet fish waste feed.