Gorgan University of Agricultural Sciences and Natural Resources Journal of Utilization and Cultivation of Aquatics 2345-427X 2 3 2013 11 22 Effects of dietary 17-β estradiol on growth, nutrition indicator and sex reversal in gold fish (Carassius auratus gibelio) Effects of dietary 17-β estradiol on growth, nutrition indicator and sex reversal in gold fish (Carassius auratus gibelio) 27 35 2218 FA Reza Tarkhani Journal Article 2012 05 22 gold fish (Carassius auratus gibelio) is from the family of cyprinidae wich like common carp (cyprinus carpio). While there are many examples of the use of estrogens to skew sex ratios in fish few address teleost species and none have been published for the gold fish, Carassius auratus gibelio. vitellogenin is a big glicolipophosphoprotein that synthesis from liver under 17-b estradiol hormone.fingerlings of gold fish feeding by 17b estradiol to 6 mounths in 3 dose (10 25 50) mg per kg plus control treat. estradiol resolve in etanol then spray on food. in 25 and 50 mg per kg E2 all female fish product. with high in dose of E2 metabolism and growth of fish reduce. gold fish (Carassius auratus gibelio) is from the family of cyprinidae wich like common carp (cyprinus carpio). While there are many examples of the use of estrogens to skew sex ratios in fish few address teleost species and none have been published for the gold fish, Carassius auratus gibelio. vitellogenin is a big glicolipophosphoprotein that synthesis from liver under 17-b estradiol hormone.fingerlings of gold fish feeding by 17b estradiol to 6 mounths in 3 dose (10 25 50) mg per kg plus control treat. estradiol resolve in etanol then spray on food. in 25 and 50 mg per kg E2 all female fish product. with high in dose of E2 metabolism and growth of fish reduce.