Pinar  Celik, Yusuf  Guner, Ihsan  Celik, 
    Effect of Orally-Administered 17&#945;-Methyltestosterone at Different Doses on the Sex Reversal of the Nile Tilapia (<I>Oreochromis niloticus, </I>Linneaus 1758),
    Journal of Animal and Veterinary Advances,
    Volume 10,Issue 7,
    2011,
    Pages 853-857,
    ISSN 1680-5593,
    javaa.2011.853.857,
    (https://makhillpublications.co/view-article.php?doi=javaa.2011.853.857)
    Abstract: In order to obtain all male population, the Nile tilapia (<I>Oreochromis niloticus</I>) larvae which just finished the yolk sac were fed with feed containing 17&#945;-Methyltestosterone at five different doses (0, 20, 30, 40, 50 and 60 mgMT kg<SUP>-1</SUP> feed) for 28 days. As a result of the experiment repeated twice, it was found out that the sex reversal rates among the groups were at the levels of 57.1, 69.8, 69.4, 70.9, 86.1 and 93.7%, respectively. Furthermore, it was observed that the highest sex reversal rate occurred in the group to which 60 mgMT kg<SUP>-1</SUP> feed dose was applied.
    Keywords: Tilapia;Oreochromis niloticus;sex reversal;17±-methyltestosterone;doses;population