GROWTH AND SURVIVAL OF NILE TILAPIA (OREOCHROMIS NILOTICUS) IN AQUAPONIC CULTURE INTEGRATED WITH TATSOI (BRASSICA RAPA VAR. NARINOSA) USING BIOFLOC-RECIRCULATING AQUACULTURE SYSTEM (RAS) HYBRID SYSTEM

• Main Author: Supriadi, Sri
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/47011
• Institution: Institut Teknologi Bandung

Increasing of Indonesian’s population will affect the demand of food and nutritional balance, therefore attempts should be conducted to fulfil the need of people’s food and nutrition. The use of tilapia as a source of animal protein is raising due to its easily obtained at an affordable prices. Meanwhile, tatsoi as a vegetable with high nutritional value, can be used to fulfil the needs of vitamins and minerals. In this research, Hybrid Biofloc-Recirculating Aquaculture System (RAS) aquaponics technology is used as an alternative technology to solve the problem in people's food demand. This study aims to determine the absolute weight growth, specific growth rate, feed conversion ratio, survival of tilapia, and water quality in the aquaponics Hybrid Biofloc-Recirculating Aquaculture System (RAS) system integrated with tatsoi plants. The study was conducted for 28 days using 2.5 month-old tilapia and 21 days old seedling of tatsoi. The results showed that from the system used, the absolute weight growth was achieved at 0.7 grams / day, growth specific rate 1.3% / day, a feed conversion ratio 1.83, survival rate 74.4%. Water quality was observed in some parameters, including average temperature of 25.2 oC, pH of 7.4, dissolved oxygen 4.1 mg / L, ammonia concentration 3.9-13.4 mg / L, nitrite concentration 0.8-3.2 mg / L, and nitrate concentrations 2.2-17.3 mg / L. Based on this research it can be concluded that this aquaponic technology can be applied for the community to fulfil balance food and nutrition.