Abstract:
The 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%.
