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Build High Profit Production and Zero Waste of Catfish Farming Industry in Small Area with Biofloc Technology and The Use of Waste for Cultivation Tubifex Worms

Tri Wahyuni*, Sarifin, Herry, Edi Pramono
Main Center of Freshwater Aquaculture
Directorate General of Aquaculture
Ministry of Marine Affairs and Fisheries
Indonesia
Yuni_kim_33@yahoo.com

 

 

Catfish (Clarias sp) are mostly liked in Indonesian society. Therefore, catfish aquaculture gives promise enough to increase society economies. But catfish aquaculture have low profit margin. To increase the margin, we can build the catfish farming in industrial scale with using Biofloc Technology. Biofloc technology can make high production by increasing  the density in a good water quality condition because the comprehensive work of heterotroph bacteria and water micro aggregates to decompose  the waste loading of ammonia, so the fish is purposed can be grow better. Combination of Biofloc system and The use of waste to cultivate tubifex worms can make this fish farming industy become zero waste and also boost the profit because the high economic value of tubifex price. The media for cultivate tubifex worms is the flushing sediment of biofloc system. This sediment has softly texture and contain high organic compound that is very appropriate with the needs for tubifex worms. In this paper, Industrial farming of catfish is built in 500 m2 area with 26 round tank diameter 3 m and 1,7 m depth  with central drain, seed size about 7-8 cm, density 500 fish/m3 in 3 months rearing/period can reach the production about 1 tons fish/week with the profit about 94 million IDR/year or 8 million IDR/months. Besides that, Tubifex worms culture is carried out in 40 m2 water channel where the sediment waste is thrown out with only once time of  planting tubifex worms can reach about 40 liters/weeks  and boost the profit about 17 million IDR/year or 1,5 million IDR/months. This industry need fixed cost about 32 million IDR and variable cost about 480 million IDR will have BEP after 1,6 years.

 

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