The aim of this research was to determine the effect of Oodev and HCG combination on ovulation and hatching of egg of Asian Catfish (Clarias gariepinus Burchel, 1822), Mutiara strain. This research was conducted from October - December 2018 at the Fish Hatchery and Breeding Laboratory, Fisheries and Marine Faculty Riau University. An experimental design used in this experiment was Complete…