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- Title
Effects of steroid and peptide hormones onin vitrogrowth of previtellogenic oocytes from eel,Anguilla australis.
- Authors
Lokman, P.; George, Kataraina; Young, Graham
- Abstract
To investigate the hormonal control of previtellogenic oocyte growth in eel,Anguilla australis, ovarian explants were incubated with or without different doses of steroid (11-ketotestosterone, estradiol-17ß) or peptide hormones (ovine growth hormone, human insulin-like growth factor-I, human chorionic gonadotropin, porcine insulin) for 18 days. 11-Ketotestosterone, but not estradiol-17ß, significantly increased oocyte diameters at physiological doses (30-100 ng/mL). Similarly, incubation with insulin-like growth factor-I, but not any of the other peptide hormones tested, resulted in increased oocyte diameters at high physiological doses (=30 ng/mL). These data implicate androgens and hormones from the metabolic axis in mediating growth of previtellogenic oocytes in eel.
- Subjects
ANGUILLA (Fish); FISH reproduction endocrinology; REPRODUCTION endocrinology; STEROID hormones; OVARIES; TESTOSTERONE
- Publication
Fish Physiology & Biochemistry, 2003, Vol 28, Issue 1-4, p283
- ISSN
0920-1742
- Publication type
Article
- DOI
10.1023/B:FISH.0000030556.34592.41