中国畜牧兽医

• 遗传繁育 • 上一篇    下一篇

猪MⅡ期卵母细胞玻璃化冷冻的研究

齐贵龙1,任亮1,朱蒙1,付博2,马红2,刘娣12   

  1. 1.东北农业大学动物科学技术学院,黑龙江哈尔滨 150030;2.黑龙江省农业科学院畜牧研究所,黑龙江哈尔滨 150086)
  • 收稿日期:2013-10-11 出版日期:2014-04-20 发布日期:2014-05-27
  • 通讯作者: 刘娣。E-mail:liudi1963@163.com
  • 作者简介:齐贵龙(1988—),男,黑龙江人,硕士生,研究方向:胚胎工程。
  • 基金资助:

    现代农业产业技术体系建设专项资金(CARS-36)。

Studies on MⅡ Stage Porcine Oocytes Vitrification

QI Gui-long1, REN Liang1, ZHU Meng1, FU Bo2, MA Hong2, LIU Di1,2   

  1. 1.College of Animal Science and Technology,Northeast Agricultural University,Harbin 150030,China;2.Heilongjiang Academy of Agricultural Sciences,Harbin 150086,China)
  • Received:2013-10-11 Online:2014-04-20 Published:2014-05-27

摘要: 本研究旨在为猪MⅡ期卵母细胞的玻璃化冷冻选择合适的冷冻保护剂及冷冻载体,提高猪卵母细胞冷冻后的存活力。试验分别采用以40% EG、15% EG+15% DMSO+20% FBS、15% EG+15% DMSO+20% SPS作为渗透性冷冻保护剂的冷冻液,以玻璃微细管(GMP)和冷冻帽(cryotop)作为载体对猪卵母细胞进行玻璃化冷冻。结果发现,采用含有血清蛋白替代物(serum protein substitute,SPS)的冷冻液VS3冷冻后二乙酰荧光素(FDA)染色存活率(59.40%±4.93%)显著高于VS1组(42.12%±4.08%)及VS2组(37.57%±1.21%)(P<0.05);采用VS3作为冷冻液用cryotop作为载体冷冻后FDA染色存活率(83.33%±3.33%)显著高于GMP(59.40%±4.93%)(P<0.05)。由此可见,采用SPS代替胎牛血清(FBS),用cryotop作为载体可以使猪卵母细胞冻后存活率显著提高。

关键词: 猪; 卵母细胞; SPS; cryotop; 玻璃化冷冻

Abstract: The study was designed to select right cryoprotectants and carrier for porcine matured oocytes to improve oocyte viability after vitrification and lay a good foundation for porcine oocytes continue development. Using 40% EG, 15% EG+15% DMSO+20% FBS, 15% EG+15% DMSO+20% SPS as cryoprotectants and taking GMP and cryotop as carrier to do porcine oocytes vitrification. The results showed that VS3 including SPS made better active of FDA (59.40%±4.93%) than VS1 (42.12%±4.08%) and VS2 (37.57%±1.21%)(P<0.05);VS3 as cryoprotectants and cryotop as carrier made better active of FDA (83.33%±3.33%) than GMP (59.40%±4.93%)(P<0.05). The data demonstrated that use SPS to instead of FBS and cryotop as carrier could significantly improve active of oocyte after vitrification.

Key words: porcine; oocytes; SPS; cryotop; vitrification