Sukendi, SukendiPutra, Ridwan MandaEddiwan, Eddiwan2019-01-032019-01-032019-01-03978-979-792-865-0wahyu sari yenihttp://repository.unri.ac.id/handle/123456789/9500The purpose of this study was to determine the effect of injecting hCG on the stimulation power of ovulation and the quality of local catfish eggs (Clarias meladerma Blkr). This research was conducted in March - June 2018 in the Laboratory of Fish Breeding and Breeding, Department of Aquaculture, Faculty of Fisheries and Marine, University of Riau. The design used was a completely randomized design (CRD) with 5 treatments and 3 replications. The treatment given was injection of ovaprim with different doses, namely P1 = injection of ovaprim with a dose of 0.4 ml / kg body weight, P2 = injection of ovaprim with a dose of 0.5 ml / kg body weight, P3 = injection of ovaprim with a dose 0.6 ml / kg body weight, P4 = injection of 0.9% physiological NaCl solution 1 ml / kg body weight (as a control). Test parameters measured consisted of latent time, number of eggs from stripping, egg diameter, egg maturity and ovisomatic index. The results showed that the best treatment dose to increase ovulation stimulation power and egg quality of local catfish was the treatment of injecting 0.5 ml ovaprim / kg body weight resulting in a latent time of 6 hours, the number of eggs striping by 4176 grains, egg diameter of 1, 8 mm, the maturity of the eggs is 90% and the ovisomatic index is 13.12%.enlocal catfishovaprimovulationegg qualityArticle