Performa Sintasan Dan Pertumbuhan Benih Ikan Nila (Oreochromis niloticus) Yang Dipelihara Dalam Sistem Akuakultur Resirkulasi Dan Teknologi Bioflok

Abstract

This research aims to analyze the growth rate and survival of tilapia cultivated in RAS and biofloc systems. To analyze the difference in feed conversion ratio in RAS and biofloc systems.To analyze the water quality criteria present in both systems during the experimental period. This research uses action research methods (ex post facto), namely research conducted based on field conditions, thus only using treatments in cultivation activities without any repetitions with treatment P1: biofloc system P2: Recirculating Aquaculture System. The results of this study indicate that the difference in production of tilapia seeds (Oreochromis niloticus) with recirculating aquaculture system and biofloc technology provides a response that is not significantly different (P>0.05) in absolute weight growth, specific weight growth rate, and survival.However, in the biofloc system, absolute weight growth, specific weight growth rate, and survival tend to have better values.The level of feed utilization of tilapia in RAS and biofloc systems can be said to be effective. However, FCR for biofloc is still better at 0.9 compared to the RAS system which has an FCR value of 1.0. Water quality conditions such as temperature, DO, and pH, as well as ammonia measured during the research, are still within the optimum range for the survival and growth of tilapia.