Erdawati, Ganjar Saefurahman, Syarif Hidayatuloh, M. Hakimi
The main objective of this study was to determine whether vermicompost can be used as an organic pond fertilizer to improve water quality and survival rate of catfish fry (Clarias sp.). The experiment was conducted for 4 weeks (28 days) with duplicates in two ponds. The control (pond C) did not apply any vermicompost, while the treated pond (pond V) was administered by the vermicompost. Vermicompost dose of 2.56 g/L was found to be a suitable dose for catfish fry. The results showed that the total nitrogen content in the control pond was decreased from 0.45 mg/L to 0.25 mg/L. In the experimental tank, the total nitrogen content was increased from 0.25 mg/L to 0.45 mg/L. Likewise, the fish length and weight of the two treatments were significantly different. © Published under licence by IOP Publishing Ltd.
Department of Chemistry, Faculty of Mathematics and Sciences, Jakarta State University, Jl. Pemuda No.10, Rawamangun, Jakarta, 13220, Indonesia; Surfactant and Bioenergy Research Center, Ipb University, Baranangsiang Campus, Jl. Raya Pajajaran No. 1, Bogor, 16143, Indonesia; School of Industrial Technology, Universiti Sains Malaysia, Penang, Malaysia
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