[Objeclive] The comparison of levels of thyroid hormones (T3, T4 and FT3) in female ducks serum and embryo of different embryonic age between Gaoyou duck and Jinding duck were made to provide basic data for further ...[Objeclive] The comparison of levels of thyroid hormones (T3, T4 and FT3) in female ducks serum and embryo of different embryonic age between Gaoyou duck and Jinding duck were made to provide basic data for further research. [Method] The levels of thyroid hormones (T3, T4 and FT3) in female ducks serum, fertilized eggs, and 7, 11,15, 19, 22, 28-days embryo of Gaoyou duck and Jinding duck were analyzed with radioimmunoassay (RIA). [ Result]The levels of thyroid hormones in fertilized eggs were higher than those in serum of female ducks; different em- bryonic age hormone level of Gaoyou duck and Jinding duck in serum had almost the same variation trend, which was low but relatively stable after 15 days. [Condusion] The result suggested that thyroid hormones play an important role in duck embryonic development, especially in the early peded.展开更多
运用SYBR Green I荧光定量RT-PCR方法和放射免疫方法(RIA)分析了外源性雌二醇(estradiol-17β,E2)对异育银鲫脑垂体-甲状腺轴的影响。实验设计时间为10周,实验组每2周注射一次0.5mg.kg-1体重的E2(用57%酒精溶解),对照组注射同剂量的57%...运用SYBR Green I荧光定量RT-PCR方法和放射免疫方法(RIA)分析了外源性雌二醇(estradiol-17β,E2)对异育银鲫脑垂体-甲状腺轴的影响。实验设计时间为10周,实验组每2周注射一次0.5mg.kg-1体重的E2(用57%酒精溶解),对照组注射同剂量的57%酒精。实验期间没有投喂饲料。在实验条件下,SYBR Green I荧光定量RT-PCR分析结果显示,注射3和5次外源性E2后,促甲状腺激素β亚基mRNA的表达水平与对照组相比均未有显著变化,但随着注射次数的增加,总体呈现升高的趋势。另一方面,RIA结果显示,注射3次外源性E2后,血清中甲状腺激素T3和T4含量水平与对照组相比均显著升高(P<0.05);注射5次后,与对照群相比差异极显著(P<0.01)。以上结果提示,外源性E2影响异育银鲫的正常生理状态。展开更多
基金funded by State Funds($31172194)Jiangsu Province Modern Agricultural Variety Innovation CX(11)(1030)+1 种基金Science and Technology Support Plan(BE2011329)Yangzhou City Science and Technology Research(YZ2010048)
文摘[Objeclive] The comparison of levels of thyroid hormones (T3, T4 and FT3) in female ducks serum and embryo of different embryonic age between Gaoyou duck and Jinding duck were made to provide basic data for further research. [Method] The levels of thyroid hormones (T3, T4 and FT3) in female ducks serum, fertilized eggs, and 7, 11,15, 19, 22, 28-days embryo of Gaoyou duck and Jinding duck were analyzed with radioimmunoassay (RIA). [ Result]The levels of thyroid hormones in fertilized eggs were higher than those in serum of female ducks; different em- bryonic age hormone level of Gaoyou duck and Jinding duck in serum had almost the same variation trend, which was low but relatively stable after 15 days. [Condusion] The result suggested that thyroid hormones play an important role in duck embryonic development, especially in the early peded.
文摘运用SYBR Green I荧光定量RT-PCR方法和放射免疫方法(RIA)分析了外源性雌二醇(estradiol-17β,E2)对异育银鲫脑垂体-甲状腺轴的影响。实验设计时间为10周,实验组每2周注射一次0.5mg.kg-1体重的E2(用57%酒精溶解),对照组注射同剂量的57%酒精。实验期间没有投喂饲料。在实验条件下,SYBR Green I荧光定量RT-PCR分析结果显示,注射3和5次外源性E2后,促甲状腺激素β亚基mRNA的表达水平与对照组相比均未有显著变化,但随着注射次数的增加,总体呈现升高的趋势。另一方面,RIA结果显示,注射3次外源性E2后,血清中甲状腺激素T3和T4含量水平与对照组相比均显著升高(P<0.05);注射5次后,与对照群相比差异极显著(P<0.01)。以上结果提示,外源性E2影响异育银鲫的正常生理状态。