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http://dx.doi.org/10.5657/kfas.2002.35.1.027

Culture of Nile Tilapia (Oreochromis niloticus) in Recirculating Aquaculture System  

Seo Kuen Hack (Department of Chemical Engineering, Pukyong National University)
Kim Byong Jin (Department of Chemical Engineering, Pukyong National University)
Jo Jae Yoon (Department of Aquaculture, Pukyong National University)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.35, no.1, 2002 , pp. 27-34 More about this Journal
Abstract
The performances of fish culture were evaluated in the integrated recirculating aquaculture system consisting of a double drain type rearing tank ($2.5 m^3$), a sedimentation tank, a floating bead filter, a foam separator and a rotating biological contactor. A system was stocked with nile tilapia at an initial rearing densities of $5\%$ (A), $5\%$ (B) and $7\%$ (C) oyer 30 days. Feed coefficient was 1.62, 1,79 and 1.80 and average daily growth rate was $0.452\%$, 0.u5% and $0.423\%$, respectively. The level of TAN was maintained below $1 g/m^3$ for $5\%$ of initial rearing density and $2-4 g/m^3$ for $7\%$. The dissolved oxygen level ($2-4 g/m^3$) was not optimum but should not be inhibitory to fish growth. The total suspended solid was completely removed during overall experimental period.
Keywords
Recirculating aquaculture system; Nile tilapia; Rotating biological contactor; Total ammonia nitrogen; Dissolved oxygen; Total suspended solid;
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