title: Stimulation of Spermiation by Human Chorionic Gonadotropin and Carp Pituitary Extract in Grass Puffer, Takifugu niphobles.
abstract: Spermiation was stimulated in the mature grass puffer, Takifugu niphobles, with an injection of human chorionic gonadotropin (HCG) or carp pituitary extract (CPE). Spermatocrit and sperm density were reduced, but milt production was increased in both the HCG and CPE treatment groups relative to those in the control group (P <0.05). These results should be useful for increasing the fertilization efficiency in grass puffer breeding programs.
authors.affiliation: Inland Aquaculture Research Center, National Fisheries Research & Development Institute, Changwon 645-806, Korea.
authors.forename: In Bon
authors.initials: IB
authors.lastname: Goo
authors.affiliation: Division of Marine Bioscience, College of Ocean Science and Technology, Korea Maritime and Ocean University, Busan 606-791, Korea.
authors.forename: In-Seok
authors.initials: IS
authors.lastname: Park
authors.affiliation: Division of Marine Bioscience, College of Ocean Science and Technology, Korea Maritime and Ocean University, Busan 606-791, Korea.
authors.forename: Hyun Woo
authors.initials: HW
authors.lastname: Gil
authors.affiliation: Inland Aquaculture Research Center, National Fisheries Research & Development Institute, Changwon 645-806, Korea.
authors.forename: Jae Hyun
authors.initials: JH
authors.lastname: Im
keywords: Milt production; Sperm density; Spermatocrit