Further experiments on the effects of sex steroids on the gonad sex differentiation of European eel.

Yellow eels 15-18 cm and 22.25 cm total length. reared in fresh water at 22.24 °C and on commercial eel food, were treated with 17-alfa-methyltestosterone (MT) and with 17-alfa-ethynilestradiol (EE) given with the diet. A very high proportion of the untreated and the MT treated eels developed as mal...

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Bibliographic Details
Main Authors: COLOMBO G, GRANDI, Gilberto
Other Authors: Colombo, G, Grandi, Gilberto
Format: Article in Journal/Newspaper
Language:English
Published: Akad.-Verl, Wiley-VCH. 1992
Subjects:
Online Access:http://hdl.handle.net/11392/461836
Description
Summary:Yellow eels 15-18 cm and 22.25 cm total length. reared in fresh water at 22.24 °C and on commercial eel food, were treated with 17-alfa-methyltestosterone (MT) and with 17-alfa-ethynilestradiol (EE) given with the diet. A very high proportion of the untreated and the MT treated eels developed as males. A significantly high proportion of the EE treated eels with e high dose (1 mg/kg of food) differentiated as females. In 22.25 cm eels the effect was weaker.