Volume : IV, Issue : VI, June - 2014

Hormonal Sex Reversal in Gymnocorymbus Ternetzi (Boulenger) using Continuous Immersion of Estradiol–17β––for Feminization

B. Uma

Abstract :

Control population had a highly skewed sex–ratio in favour of males (59%), possibly due to temperature induced / based natural sex reversal.. With an increase in dose of continuous immersion of Estradiol–17β from 50–200µg/l (single exposure) there was corresponding increase in females from 17–40%. Intersexes were observed at all doses in addition to control stock. With double exposure (50–200µg/l), the percentage of females increased further significantly from 33 (P<0.005) to 44% (P<0.001). Survival rates were not much affected when compared to control except at a dose of 100 µg/l where it dropped to 17% and intersexes were not observed at any of the above doses. Sexes were identified through gonadal squash.

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Article: Download PDF   DOI : 10.36106/ijar  

Cite This Article:

B.UMA Hormonal Sex Reversal in Gymnocorymbus Ternetzi (Boulenger) using Continuous Immersion of Estradiol -17β -- for Feminization Indian Journal of Applied Research, Vol.IV, Issue.VI June 2014

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