›› 2007, Vol. 34 ›› Issue (3): 47-49.

• 遗传繁育 • 上一篇    下一篇

细胞松弛素B对绵羊GV期卵母细胞玻璃化冷冻效果的影响

周佰成1,王志刚2,刘丑生2,赵有璋1,赵俊金2, 孟飞2
  

  1. 1.甘肃农业大学动物科技学院,兰州 730070;2.全国畜牧兽医总站畜禽牧草种质资源保存利用中心,北京 100094
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-03-20 发布日期:2007-03-20

The Effects of Cytochalasin B on Vitrification of Ovine GV-stage Oocytes

ZHOU Baicheng1, WANG Zhigang2, LIU Chousheng2, ZHAO Youzhang1,ZHAO Junjin2,MENG Fei2
  

  1. 1.Faculty of Animal Science & Technology, Gansu Agricultural University, Lanzhou 730070, China; 2.National Center for Preservation & Utilization of Genetic Resources of Animal & Forage, Beijing 100094, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2007-03-20 Published:2007-03-20

摘要: 本试验通过玻璃化冷冻前细胞松弛素B(CB)预处理来分析CB对绵羊GV期卵母细胞玻璃化冷冻/解冻后发育潜力的影响。分别从细胞毒性检测、冷冻检测和CB不同浓度(6.0、7.5和9.0 μg/ml)处理3个方面进行试验。试验结果表明毒性检验中CB处理组和未处理组卵母细胞的成熟率都显著低于对照组(P<0.05),但相互之间差异不显著;玻璃化冷冻后,卵母细胞成熟率显著低于未冷冻组(P<0.05),玻璃化冷冻CB处理组和未处理组卵母细胞体外成熟培养后成熟率之间差异不显著(P>0.05);不同CB浓度处理后9.0 μg/ml组卵母细胞的成熟率显著高于对照组(P<0.05)。

关键词: 玻璃化冷冻; 细胞松弛素B; 绵羊; GV期卵母细胞

Abstract: In this experiment, the effect of cytochalasin B (CB) on vitrification of ovine GV-stage oocytes were analyzed. This experiment included toxicity test,vitrification and pretreatment with different cytochalasin B (CB) concentration. The results were as follows: rates of matured oocytes of toxicity groups both, with or without CB pretreatment were lower than control group (P<0.05), but there was no difference between them(P>0.05). In vitrified groups, the rate of matured oocytes was 16.1% and 14.1% respectively after in vitro maturation culture, they were all significantly lower than control group (P<0.05). 9.0ug/ml of CB could improve the maturation rate compared with control group(P<0.05).

Key words: vitrification; cytochalasin B; ovine; GV-stage oocytes

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