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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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To determine the effective dose of 17β-estradiol on the production of all female populations of Nile tilapia, Oreochromis niloticus, the first feeding-stage larvae were fed 0, 60, 120, 240 and 480 ppm of 17β-estradiol in the diet for 30 days. Rates of sex reversal, survival and growth of each treated group were analyzed. Effects of 3 different treatment durations, 10, 20 and 30 days, treated with 480 ppm 17β-estradiol in the diet to produce all females, were also evaluated.
The incidence of female fish were clearly dose and time dependent. The female induction rate of 0, 60, 120, 240 and 480 ppm were 47.5, 86.4, 91.3, 97.0 and 100%, respectively. Female induction rates of 480 ppm treated for 10, 20 and 30 days were 64.2, 84.3 and 100 % respectively. The survival rate of each treated group was not different from the control, and the growth rates of the treatment groups decreased as the treatment duration and the concentration of the estrogen hormone increased.
The incidence of female fish were clearly dose and time dependent. The female induction rate of 0, 60, 120, 240 and 480 ppm were 47.5, 86.4, 91.3, 97.0 and 100%, respectively. Female induction rates of 480 ppm treated for 10, 20 and 30 days were 64.2, 84.3 and 100 % respectively. The survival rate of each treated group was not different from the control, and the growth rates of the treatment groups decreased as the treatment duration and the concentration of the estrogen hormone increased.
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UCI(KEPA) : I410-ECN-0101-2009-529-015329129