The role of HCG in jelawat fish (Leptobarbus hoevenii) breeding in Indonesia.

Jelawat fish (L. hoevenii) is a fish that is easily found in Southeast Asia, including Indonesia. It has high economic value and good nutrition content so many farmers are encouraged to do Jelawat fish aquaculture activity. One of the problem is the availability of quality seeds that cannot be fulfilled and depend on natural stock. The solution is using HCG (Human Chrorionic Gonadotropin). This study used three treatments, P1 (HCG 0 IU/kg), P2 (HCG 300 IU/kg) and P3 (HCG 600 IU/kg). The results showed that the injection of HCG was effective to increase the spawning and reproductive performance of jelawat fish with optimal results in the 600 IU/kg treatment. These treatments showed a 100% ovulation rate, 8 hours latency time, 121.333 eggs fecundity, 1.183 mm egg diameter, 86.16% fertilization rate, 87.48% hatching rate, 94.88% survival rate and larvae abnormality of 0. [ABSTRACT FROM AUTHOR]