Domestication of Belontia Hasselti with Different Densities Using Zeolite Filter Media in Recirculation System

Abstract

Belontia hasselti have not been widely cultivated and still depend on catching from nature. Community needs require the cultivation of B. hasselti that are still wild to satisfy their needs. Things that need to be considered in the acclimatization process for the domestication process are stocking density and the right cultivation technology system to support the survival rate of the B. hasselti. This study aimed to determine the best stocking density during the domestication process of B. hasselti using zeolite filter media in a recirculation system. This study used a completely randomized design with five treatments and three replications. The treatments given differences in stocking density were 1 (P1), 2 (P2), 3 (P3), 4 (P4), and 5 (P5) fish L-1. The results of this study showed that the best stocking density was in P1 (1 fish L-1) tail resulted in 91% survival rate, absolute weight growth at 3.17 g, absolute length growth at 0.18 cm, and feed efficiency at 16.91%. The water quality during the study was still within the tolerance limits for B. hasselti, i.e. temperature 27.4-27.6oC, pH 6.1-7.8, dissolved oxygen 5.4-5.5 mg L-1, and ammonia 0.06-0.1 mg L-1.