Effects of 17ß-estradiol Hormone on Growth and Sex Differentiation in the Mozambique Tilapia (Oreochromis mossambicus, Peters, 1852)

Authors : Karl Christofer KİNGUELEOUA KOYAKOMANDA, Muamer Kürşat FIRAT, Cüneyt SÜZER, Serhat ENGİN, Müge HEKİMOĞLU, Hülya SAYĞI, Osman ÖZDEN, Fatih GÜLEÇ, Şahin SAKA

Pages : 14-21

Doi:10.26650/ASE2018500686

View : 53 | Download : 7

Publication Date : 2019-01-07

Article Type : Research Paper

Abstract :In this study, the effects of 17-ß-estradiol hormone on the zootechnic performances and sex ratio of Mozambique Tilapia insert ignore into journalissuearticles values(Oreochromis mossambicus. Peters, 1852); fry were investigated in order to initially produce functional phenotypical females and then super males. To this end, different E2 concentrations insert ignore into journalissuearticles values(50, 100, 150 and 200 ppm); were tested over a period of 45 days in a closed recirculating system. The evaluations showed that the female ratio was significantly insert ignore into journalissuearticles values(p value= 0.04 and α=0.05); higher in all treatment groups ranging from 61.90% to 86.36% compared to the control group. Growth was significantly higher insert ignore into journalissuearticles values(F value=22.78 and p value=0.00); in the control group compared to the treatment ones.
Keywords : Mozambique tilapia, Oreochromis mossambicus, 17ß estradiol hormone, sex difference

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