Effect of Orally-Administered 17 alpha-Methyltestosterone at Different Doses on the Sex Reversal of the Nile Tilapia (Oreochromis niloticus, Linneaus 1758)


ÇELİK I., Guner Y., ÇELİK P.

JOURNAL OF ANIMAL AND VETERINARY ADVANCES, cilt.10, ss.853-857, 2011 (SCI İndekslerine Giren Dergi) identifier

  • Cilt numarası: 10 Konu: 7
  • Basım Tarihi: 2011
  • Dergi Adı: JOURNAL OF ANIMAL AND VETERINARY ADVANCES
  • Sayfa Sayıları: ss.853-857

Özet

In order to obtain all male population, the Nile tilapia (Oreochromis niloticus) larvae which just finished the yolk sac were fed with feed containing 17 alpha-Methyltestosterone at five different doses (0, 20, 30, 40, 50 and 60 mgMT kg(-1) 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(-1) feed dose was applied.