Cage Culture Aquaculture Overview

Intensive culture in freshwater ponds/tanks ● ● Mainly practice in the top four tilapia producing provinces Pond size: 0.2 to 0.5 ha Aeration: 1-3 paddlewheel aerators per ha of surface area Stocking density: 30,000 to 37,500 fish/ha Feeding: artificial feed (28-35% CP) 2-3 times daily at 10-6% BWD for small fish (<100 g), 6-3% for medium fish (100-250 g), and 3-1.5% for large size fish (300-800 g) Culture period: 150 to 180 days Gross yield ranges: 15-20 mt/ha, 600-800 g/fish, FCR 1.5-2 • Average market price - 6.5-7.0 Yuan/kg • Tilapias are also intensively cultured in tanks in temperate regions such as Shandong province, using heat effluent water from power plants.

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