title: The effects of reserpine and LHRH or salmon GnRH analogues on gonadotropin release, ovulation and spermiation in common carp (Cyprinus carpio L.).
abstract: The effects of reserpine (catecholamine depletor) and LHRH analogues on gonadotropin secretion, spermiation and ovulation of common carp were investigated. Injections of reserpine alone at a dose of 1 or 7 mg/kg of body weight stimulated spermiation, and reserpine at a dose of 1 mg/kg of body weight in combination with (D-Arg6, Trp7, Leu8, Pro9, NEt)-LHRH (s-GnRH-A) or with (D-Ala6, Pro9)-LHRH (LHRH-A) at a dose of 50 micrograms/kg of body weight caused an increase of plasma gonadotropin levels, spermiation and ovulation in 80-90% of the females. Simultaneous injection of reserpine and LHRH analogues was as effective as injection of reserpine followed by injection of LHRH analogues 6 h later.
authors.affiliation: Department of Ichthyobiology and Fisheries, Agricultural Academy, Kraków-Mydlniki, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Sokołowska
authors.forename: T
authors.initials: T
authors.lastname: Mikolajczyk
authors.forename: P
authors.initials: P
authors.lastname: Epler
authors.forename: R E
authors.initials: RE
authors.lastname: Peter
authors.forename: W
authors.initials: W
authors.lastname: Piotrowski
authors.forename: K
authors.initials: K
authors.lastname: Bieniarz
mesh_terms: D000818:Animals; D002347:Carps / Q000502:physiology*; D003530:Cyprinidae / Q000502:physiology*; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000031:analogs & derivatives* / Q000494:pharmacology*; D006062:Gonadotropins / Q000097:blood / Q000378:metabolism*; D007700:Kinetics; D008297:Male; D010060:Ovulation / Q000187:drug effects*; D012016:Reference Values; D012110:Reserpine / Q000494:pharmacology*; D012474:Salmon; D013091:Spermatogenesis / Q000187:drug effects*
chemical_list: D006062:Gonadotropins; D007987:Gonadotropin-Releasing Hormone; C010661:surfagon; D012110:Reserpine; C058987:5-oxo-pro-his-trp-ser-tyr-gly-trp-leu-pro-glynh2