The effects of different feeding rates on the growth of silver rasbora (Rasbora argyrotaenia)

Abstract

Abstract This study was purposed to know the effects of feeding rate on growth and feed conversion ratio and obtain the optimal feeding rate in silver rasbora (Rasbora argyrotaenia) culture. The study was conducted on January-March 2019 in the aquaculture facility and laboratory of Universitas Airlangga, Banyuwangi Campus. A total of 400 silver rasbora fry with a total length of 2.5 ± 0.5 cm and body weight of 266.1 ± 9.51 mg was obtained from the aquaculture facility of Universitas Airlangga, Banyuwangi Campus. There are 5 feeding rate treatments (4 replicates) in this study including at satiation, 1 %, 3 %, 5 %, and 7 % from fish biomass. All treatments and replication were conducted on 20 glass aquaria (30 × 40 × 50 cm3) with a 20 fish/aquarium stocking density for 40 days. Based on the results, the feeding rate significantly (P < 0.05) effect to all parameters. The optimum feeding rate in this study is 3 %, where lower feeding consumption obtained the same growth with other treatments.