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影响猪卵母细胞体外受精效率因素的研究 被引量:2

The study on the factors of procine oocytes in vitro fertilization efficiency
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摘要 通过比较参与受精的卵母细胞颗粒细胞存在与否、精子上浮时间、精卵共孵育时间、不同受精液等4个方面的因素,研究这些因素对猪卵母细胞体外受精后胚胎发育能力的影响,以求找到最佳的猪卵母细胞体外受精体系。将选择带有不同颗粒细胞的卵丘卵母细胞复合体分为3组:含全部颗粒细胞、2~3层颗粒细胞和裸卵;调整精子在受精液里的上浮时间为0、30、60、120min研究其受精能力;比较3、6、20h精卵共孵育时间对体外受精的影响;结果表明:在本试验体系下,在mTBM受精液中,将精子上浮处理60min,与含2~3层颗粒细胞的卵丘-卵母细胞复合体共孵育6h的IVF体系最为有效,其卵裂率为(77.6±2.3)%,囊胚率为(25.7±2.6)%。 The aims of the present study were to evaluate and contrast the efficiency in several aspects on pig oocytes in vitro fertilization,to analyse the effect of cumulus-oocytes complexes(COCs)on IVF cleavage rate and blastocyst rate,to evaluate the influence of sperm floating time(0,30,60 and 120min)on IVF,to analyse the effect of gametes co-incubation time on IVF efficiency.The results shows that the sperms after floating 60min and the COCs with 2or 3 layers were incubated 6h in mTBM medium got the best cleavage rate and blastocyst rate(77.6±2.3)% and(25.7±1.6)%.
出处 《中国兽医学报》 CAS CSCD 北大核心 2013年第9期1451-1453,1457,共4页 Chinese Journal of Veterinary Science
基金 国家自然科学基金资助项目(31101700) 转基因生物新品种培育重大专项 节粮型高瘦肉率转基因猪新品种培育资助项目(2008ZX08006-003)
关键词 卵母细胞 体外成熟 体外受精 porcine oocytes in vitro maturation in vitro fertilization
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参考文献10

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