he efficiency of the white leg shrimp production using an integrated recirculating and biological filtration system

Abstract

In this study, a commercial shrimp  (Litopenaeus vannamei Boone, 1931) culturing was designed and evaluated based on the efficiency of biological and mechanical filtration in a recirculation aquaculture system (RAS). Changes in water quality parameters and the growth rates of commercial shrimp production were used to assess the efficiency of RAS. The results showed that the water quality parameters: TAN, NO₂^-, NO₃^- were always below the allowable standards in the biological filtration system without affecting shrimp growth. The biological filtration system has controlled environmental parameters to help shrimp grow well at high stocking density with the growth rate of shrimp in RAS equivalent to that of external pond systems. The study found that the optimal stocking density for the system was 1600 fish/tank (800 fish/m³), which gave a survival rate of 54.2%, a yield of 18.5 kg/tank, an average shrimp size of 46.9 shrimp/kg, and an average shrimp weight of 21.3 g/head. The results of this study open up a direction for more sustainable shrimp farming by saving water resources and limiting disease outbreaks during farming shrimp.