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The effect of 11 β‐hydroxyandrostenedione on pikeperch Stizostedion lucioperca (L.)
Author(s) -
DemskaZakes K.,
Zakes Z.
Publication year - 1999
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1046/j.1365-2109.1999.00384.x
Subject(s) - biology , gonadosomatic index , stizostedion , androgen , endocrinology , juvenile , medicine , oral administration , fishery , zoology , fish <actinopterygii> , hormone , ecology , population , demography , sociology , fecundity
Oral administration of 11 β‐hydroxyandrostenedione was used to sex inverse juvenile Stizostedion lucioperca (L.) reared under intensive culture conditions. Androgen was mixed into the commercial trout food in the following doses: 0, 30, 60 and 90 mg kg −1 diet. Administration (for 21 days) of 60 mg 11 β‐hydroxyandrostenedione kg −1 of the diet produced 93% males and 7% bisexual fish. In hormone‐treated groups, no morphological changes were observed in the liver. No significant differences were observed in growth or in the hepatosomatic index between the androgen‐treated groups and the control group.