Early sex reversal during embryonic development in the Nile tilapia

Carole Rougeot, Samane Y. Kanfitine, Christian Prignon, Vincent Gennotte & Charles Mélard
The aim of this work was to study the effect of hormonal sex-reversal treatment during embryonic development of Nile tilapia. XX and XY embryos were incubated in 17 α-methyltestosterone or in 17α-ethynylestradiol during embryonic development. Mean survival rates of embryos 5 days post-hatching ranged from 13.1% to 63.9%. XY embryos incubated in E2 displayed a significant proportion of females (from 50.6 to 79.0%) and XX embryos incubated in MT a significant proportion of males (from...
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