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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

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