The effect of 11 β-hydroxyandrostenedione on pikeperch Stizostedion lucioperca (L.)

Abstract

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.