Open AccessAn Evaluation of a Leuteinizing Hormone‐Releasing Hormone Analog to Induce Spawning of Channel Catfish Ictalurus punctatus
Author(s) -
Busch Robert L.,
Steeby James A.
Publication year - 1990
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/j.1749-7345.1990.tb00948.x
Subject(s) - catfish , ictalurus , biology , carp , hormone , endocrinology , body weight , medicine , intraperitoneal injection , fishery , fish <actinopterygii> , zoology
The leuteinizing hormone‐releasing hormone (LH‐RH) analog, DAla 6 DesGly 10 LH‐RH‐ethyl amide, delivered by intraperitoneal or intracranial injection was an effective agent for the induced spawning of channel catfish ( Icrulurus punctatus ) held in aquaria. A daily dose of 100 μg LH‐RH analog (LH‐RHa) per kg fish body weight was recommended as the dosage schedule of choice, but daily doses as low as 1 cg LH‐RHa per kg fish body weight induced spawning of channel catfish. LH‐RHa was as good or better than human chorionic gonadotropin or carp pituitary to induce spawning of channel catfish in aquaria. Sham‐injected (control) channel caffish spawned in this study contradicting observations in earlier studies.