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当前位置: 首页 > 文章 > 双棘黄姑鱼血清性类固醇激素的周年变化 广东海洋大学学报 2007,27 (3) 16-19
Position: Home > Articles > Seasonal Cycles of Serum Sex Steroid Levels of Nibea diacanthus Journal of Guangdong Ocean University 2007,27 (3) 16-19

双棘黄姑鱼血清性类固醇激素的周年变化

作  者：
沈卓坤;郑剑辉;陈怀定;赵会宏
单  位：
华南农业大学;广东省水产学校
关键词：
双棘黄姑鱼;雌二醇;睾酮
摘  要：
采用放射免疫法(RIA)测定双棘黄姑鱼(Nibea diacanthus)血清性类固醇激素的周年变化。结果表明:雌鱼血清雌二醇(Estadiol-17β)浓度一年出现两次峰值,均在成熟产卵前一个月,即4月[(338±59)pg/mL]和9月[(296±48)pg/mL];血清睾酮(T)浓度在卵黄发生期急剧上升,并在卵巢成熟期达到最高值,分别是5月(2.506±0.262 ng/mL)和10月份(2.268±0.243 ng/mL),分别在血清雌二醇浓度两次峰值出现1个月之后,因此,雌鱼的血清雌二醇浓度和血清睾酮浓度均与性腺发育相关。雄鱼血清睾酮浓度的两次峰值均出现在性腺已发育成熟的5月份(2.307±0.792 ng/mL)和10月份(2.286±0.607 ng/mL),与性腺发育有明显的相关性;而血清雌二醇浓度全年维持在一个相对稳定的水平,与雄性性腺发育相关性不明显。
译  名：
Seasonal Cycles of Serum Sex Steroid Levels of Nibea diacanthus
作  者：
Shen Zhuokun1,Zheng Jianhui1,Chen HuaiDing1,Zhao Huihong2(1.Guangdong Provincial Fishery School,Guangzhou 510320,China)(2.Animal science college,South China Agricultural University,Guangzhou 510642,China)
关键词：
Nibea diacanthus;Estadiol-17β;Testosterone
摘  要：
The seasonal cycles of sex steroid of Nibea diacanthus were determined by RIA in this article.The results showed that the females had two Estadiol-17β peak values in April(338±59pg/mL) and September(296±48pg/mL) respectively,just one month before the spawning season.The levels of serum Testosterone of females rose quickly during yolk formation period,and the levels of Testosteroneestosterone changed followed with that of Estadiol-17β, and reached its highest levels in the period of ovary maturation.The results showed that both Estadiol-17β and T had relationship with ovary development in females.The levels of serum Testosterone in males had two peak values in May(2.307±0.792ng/mL) and October(2.286±0.607ng/mL) respectively,just in the spawning seasons.It showed that the levels of serum Testosterone of males had relationship with spermary development.While the serum Estadiol-17β levels of males changed little during the seasonal cycles,it seemed the relationship between Estadiol-17β and spermary development was not obviously.

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