Effects of temperature on the deformity and sex differentiation of tilapia, Oreochromis mossambicus.
Effects of temperature on the deformity and sex differentiation of tilapia, Oreochromis mossambicus.
复制标题
温度对莫桑比克罗非鱼畸形和性别分化的影响。
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
C. Tsai
中科院分区：
文献类型：
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作者：
Li;C. Tsai
研究了温度对罗非鱼畸形和性别分化的影响。将0日龄、5日龄和10日龄罗非鱼分为4组，分别在20、24、28和32 ℃下饲养5天。在本试验中，罗非鱼在5日龄前被置于高温（28 ℃和32 ℃）下，畸形率显著增加，而低温（20 ℃）对形态发育没有影响。另一方面，在本实验期间，在10日龄之前暴露于较低温度诱导了高比例的雌性，而在10日龄之后升高的温度诱导了高比例的雄性。这些结果表明，形态发育受温度的影响，特别是在一个有限的发育期内的温度升高。低温和高温分别诱导性腺发育受限期的雌性化和雄性化。J. Exp. Zool.286：534-537，2000.
The effects of temperature on the deformity and sex differentiation of tilapia, Oreochromis mossambicus, were investigated. Zero- (the hatching day), 5-, and 10-day-old tilapia were respectively divided into 4 groups that were reared at 20, 24, 28, and 32 degrees C for 5 days. Percentages of deformity were significantly increased when tilapia were kept in the elevated temperatures (28 and 32 degrees C) before 5 days old during this experiment, whereas the lower temperature (20 degrees C) had no effect on the development of morphology. On the other hand, exposure to the lower temperature before 10 days old induced a high proportion of females whereas a high proportion of males was induced by the elevated temperature after 10 days old during this experiment. These results indicate that morphological development is influenced by temperature, particularly by the elevated temperature during a restricted developmental period. Both lower and elevated temperatures induce the gonadal feminization and masculinization, respectively, during its restricted developmental period. J. Exp. Zool. 286:534-537, 2000.