CAJ | 학술논문

利用不同浓度的17α-甲睾酮（MT）（0.5、1、5、10μg/L）对25日龄的雌核发育黄姑鱼进行浸浴处理，每日2 h，连续处理75 d，用以研究MT对其生长、死亡率和性分化的影响。实验结果表明，在雌核发育黄姑鱼孵化后25日龄至100日龄用17α-甲基酮进行浸浴处理均可使其转化成伪雄鱼。外源性MT对黄姑鱼的生长有抑制作用，与对照组差异显著（P≤0.05），但对其生存率并无显著影响（P≥0.05）；各MT实验浓度对雌核发育黄姑鱼幼鱼都有性逆转作用，性逆转时间5μg/L最早，比正常黄姑鱼提前了4d。
이용불동농도적17α-갑고동（MT）（0.5、1、5、10μg/L）대25일령적자핵발육황고어진행침욕처리，매일2 h，련속처리75 d，용이연구MT대기생장、사망솔화성분화적영향。실험결과표명，재자핵발육황고어부화후25일령지100일령용17α-갑기동진행침욕처리균가사기전화성위웅어。외원성MT대황고어적생장유억제작용，여대조조차이현저（P≤0.05），단대기생존솔병무현저영향（P≥0.05）；각MT실험농도대자핵발육황고어유어도유성역전작용，성역전시간5μg/L최조，비정상황고어제전료4d。
In order to study on the effects of 17α-methyltestosterone on growth, mortality and sex differentia-tion in Nibea albiflora, the Gynogenetic larval(N. albiflora) on 25 days post hatching were treated in 17α-Methyl-testosterone (0.5, 1, 5, 10μg/L) for 2 hours each day and lasted for 75 days. The results showed that Gynogenetic N. albiflora could convert into pseudo-male after 75 days treatment with MT. Meanwhile, exogenous MT had an inhibiting effect on the growth of N. albiflora, weight gain of which was significantly lower than that in the control group(P≤0.05), however, survival was not affected by exogenous MT( P≥0.05). The MT concentration for each ex-periment can reversal Gynogenetic croaker juveniles is sex, the treatment group 5μg/L reversal sex earliest and 4 days earlier than the normal Nibea.