LAJU PERTUMBUHAN IKAN NILA (Oreocromis niloticus) YANG DIPELIHARA DENGAN MENGGUNAKAN SISTEM BIOFLOK DI KABUPATEN SUMBA TIMUR

Abstract

Biofloc technology is a fish culture technology based on the principle of assimilation of inorganic nitrogen (ammonia, nitrite and nitrate) by the microbial community (heterotrophic bacteria) in culture media which can then be used by the cultivated organism as a food source. The use of probiotics in aquaculture is used to control microbes in the water, in the digestive tract of the host, improve the quality of the aquatic environment through the process of biodegradation. Biofloc technology is expected to minimize the cost of feed most spent during tilapia cultivation. The purpose of this activity is to evaluate the growth of tilapia (Oreocromis niloticus) using the biofloc system. The method used is an experimental method. All parameters measured were analyzed descriptively. The results of the growth rate of tilapia maintained for 32 days using the biofloc system are a life-passing rate of 100%, and a specific growth rate of 5.23% with a body weight of 35 grams and a body length of 9.6 cm. Based on this, the biofloc system can provide a maximum fish growth rate.