Circadian Changes in Serum Concentrations of Steroids in Japanese Char Salvelinus leucomaenis at the Stage of Final Maturation

Circadian Changes in Serum Concentrations of Steroids in Japanese Char Salvelinus leucomaenis at the Stage of Final Maturation

Circadian changes in serum concentrations of testosterone (T), 11-ketotestosterone (11KT), estradiol-17β (E2), 17α,20β-dihydroxy-4-pregnen-3-one (DHP), 17α-hydroxyprogesterone (OHP), cortisol (F) and progesterone (P) were investigated in the spermiated/ovulated Japanese char Salvelinus leucomaenis f...

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Veröffentlicht in:Zoological Science 2002-08, Vol.19 (8), p.891-898
Hauptverfasser: Yamada, Hideaki, Satoh, Ri-ichi, Ogoh, Masashi, Takaji, Keigo, Fujimoto, Yasufumi, Hakuba, Takeshi, Chiba, Hiroaki, Kambegawa, Akira, Iwata, Munehico
Format: Artikel
Sprache:eng
Schlagworte:
Animals
Circadian Rhythm
cortisol
Female
final maturation
Freshwater
Gonadal Steroid Hormones - blood
Hydrocortisone - blood
Male
Original s
progesterone
Progesterone - analogs & derivatives
Progesterone - blood
Salvelinus leucomaenis
spawning behavior
testosterone
Testosterone - analogs & derivatives
Testosterone - blood
Time Factors
Trout - blood
Trout - growth & development
Trout - physiology
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Zusammenfassung:Circadian changes in serum concentrations of testosterone (T), 11-ketotestosterone (11KT), estradiol-17β (E2), 17α,20β-dihydroxy-4-pregnen-3-one (DHP), 17α-hydroxyprogesterone (OHP), cortisol (F) and progesterone (P) were investigated in the spermiated/ovulated Japanese char Salvelinus leucomaenis for over three days using newly developed time-resolved fluoroimmunoassays. Testosterone and DHP in both sex and 11KT in male showed significantly (P
ISSN:0289-0003
DOI:10.2108/zsj.19.891