Growth Performance of Silver Arowana Fed with Gryllus mitratus (Local Cricket) and Blaptica Dubia (Dubia Roach)

This research aimed to determine the feed types for Brazilian silver Arowana (Osteoglossum bicirrhosum), consisting of Poecilia reticulata (guppy fish), Gryllus mitratus (local cricket) and Blaptica Dubia (Dubia roach). The best feed ratios were compared to improve the performance growth of Arowana. The research was conducted in October - November 2022 at the ornamental fish farm named Badai Arwana Tasikmalaya, West Java. This research used an experimental method with a completely randomized design through five treatments and four repetitions. The treatments consisted of (A) guppy fish as the control feed (100%); (B) local cricket as the tested feed (100%); (C) Dubia roach as the tested feed (100%), (D) combination of guppy fish (50%) with local cricket (50%); and (E) combination of guppy fish (50%) with Dubia roach (50%). The treatments were given for 40 days, and the growth parameters of those Arowana seeds were then observed every 10 days. The observed parameters covered Survival Rate (SR), Absolute Length Growth (L), Absolute Weight Growth (W), Feed Conversion ratio (FCR), and Water Quality. SR, W, L, and FCR data were analyzed using ANOVA with a significant level of 95% and if there is a significant difference, the Duncan test will be further conducted. Meanwhile, water quality was descriptively analyzed. The research results showed that the feed combination of guppy fish (50%) with local cricket (50%) could improve the SR and growth performance of Arowana seeds. The given feed combination with the ratio of guppy fish (50%) with local cricket (50%) resulted in SR (100%), L (9.07 cm), W (10.53 g), and FCR (2.36). Meanwhile, the water quality during the research was in appropriate and stable conditions.