The Effect of Natural (Daphnia Sp.) and Different Synbiotic Feed on Rainbow Celebes (Marosatherina ladigesi) Growth Performance and Survival Rate

Abstract

The Rainbow Celebes fish (Marosatherina ladigesi) is a type of freshwater ornamental fish that is endemic to the Maros area in South Sulawesi. However, the species is facing endangerment due to frequent fishing. Therefore, this research aims to determine the effect of conservation efforts by providing good feed such as natural feed, prebiotics, and probiotics to improve the growth performance and survival rate of the Rainbow Celebes fish. The research used 90 tails of the fish which were divided into four categories, namely group A (artificial feeding), B (natural food Daphnia sp.), C (synbiotic feed and teak leaf extract Tectona grandis L.), and D (feeding synbiotic plus seaweed extract Sargassum sp.) with a dose of 0.118, 0.120, 0.385, and 0.395gram/day, respectively. The results showed that the highest morphometric was 5.78±0.08mm (length) and 2.70±0.10mm width and the specific growth rate was 2.05±0.04/day. The survival rate was the same in treatments A, B, and D, which was 100%, treatment C was 90%, and the quality of maintenance water was within normal limits. Based on these results, it can be concluded that research with synbiotic feeding and Sargassum sp. significantly improved the morphometry, growth performance, and survival rate of rainbow Celebes fish.