ABSTRACT This research was conducted from March to April 2021 at the Fish Hatchery and Breeding Laboratory, Faculty of Fisheries and Marine Science,University of Riau. The purpose of this research was to know the effect of carp pituitary extracts hipofis and hCG best treatment to ovulation and hatching rate eggs of Labeobarbus festivus and to determine the best doses of hCG to stimulate o…