Abstract

Climbing perch (Anabas testudineus Bloch) is one of Indonesia's endemic fish that has high economic value in the Riau area, especially in Kampar Regency. The community's need for this fish is still obtained solely from catches in public waters, especially from the waters of the Kampar River. The problem faced in the artificial spawning of Climbing perch is the low value of egg fertilization by sperm caused by a lack of spermatozoa fluid. The solution to increase the motility of spermatozoa and the value of fertilization is to add NaCl fertilization solution at the time of fertilization of eggs by spermatozoa. This research was conducted at the Laboratory of Fish Hatchery and Breeding, Faculty of Fisheries and Marine Sciences, Riau University from May to August 2021. The design used in this study was a Completely Randomized Design (CRD) with one treatment and three replications. The treatment used in this study was the addition of different concentrations of NaCl fertilization solution, consisting of 0.3%, 0.5%, 0.7%, and 0.9%. The results obtained that the best treatment was in the treatment of 0.7% NaCl concentration of fertilization solution with 91.9% fertilization value, 92.7% hatching value, 82.8% survival rate, 1.6% abnormal larval value, spermatozoa motility 4 (very good) duration of motile spermatozoa was 56.3 minutes, absolute weight growth for 40 days was 0.8877 g, absolute length growth was 4.1850 cm, the specific growth rate was 16.9142 %, and survival was 71.7778%.