Providing different natural feeds on the growth rate of tor soro larvae

Tor soro is an Indonesian freshwater fish that is threatened with extinction. Preventing the extinction of the Tor soro fish is by carrying out cultivation activities. This research aims to determine the impact of providing different varieties of natural feed on the growth rate of Tor soro . Completely Randomised Design (CRD) consisting of four treatments (A; Artemia salina 21 days, B; Artemia salina 7 days and Tubifex sp. 14 days, C; Daphnia sp. 21 days, D; Daphnia sp. 7 days and Tubifex sp.14 days) was the method used in this research. Fish maintenance is for 21 days with a feeding frequency of twice (morning and evening). The results of the ANOVA test showed that giving different natural feeds impacts absolute length growth and specific growth rate, but does not significantly differ the survival rate of Tor soro fish larvae. The highest absolute length growth was 1.07 ± 0.01 cm and 0,036±0,025 g of the absolute weight growth. the difference in days of feeding impacts fish growth because the protein contained in Tor soro fish feed varies (Treatment B). The conclusion obtained from this research was that the highest value was found in treatment B.