Ecology, Environment and Conservation Paper

APPLICATION OF BIOFLOC TECHNOLOGY ON GROWTH PERFORMANCE AND SURVIVAL RATE OF GIANT GOURAMI (OSPHRONEMUS GORAMY) WITH DIFFERENT STOCKING DENSITIES

Romy Romanda Wiyono, Nina Nurmalia Dewi, Muhamad Amin, Luthfiana Aprilianita Sari2 and Agung Luthfi Fauzan

Abstract

Giant gourami is a freshwater fish that has high economic value. This study is aimed to determine the effect of biofloc treatment at different densities on growth and survival rate of giant gourami. This was an experimental study with a completely randomized design, consisting of four treatments and three replications. The treatments given in this study included:K1 (stocking density of 100 fish without biofloc), P1 (stocking density of 100 individuals with biofloc C/N ratio 12), K2 (stocking density of 150 fish without biofloc, and P2 (stocking density of 150 fish with biofloc C/N ratio 12). The parameters observed were specific growth rate, average daily gain, biomass, and survival rate. The data were analyzed using variance analysis (ANOVA) and Duncan’s Multiple Distance Test. The results showed that biofloc treatment with different densities significantly affected the specific growth rate, average daily gain, and biomass but not had significant effect on the survival rate.