Laboratory Animal and Comparative Medicine ›› 2017, Vol. 37 ›› Issue (5): 405-409.DOI: 10.3969/j.issn.1674-5817.2017.05.012

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Different Oocyte Collecting Time Impact on Quality of Oocyte,in Vivo Maturation Rate and in Vitro Fertilization Rate after Superovulation in KM Mice

PENG Li-fan, ZHANG Xiao-jian, LIAO Mei-xu, LI Xiao-jie, YU Kun   

  1. Reproduction Medical Center, Sichuan Provincial People's Hospital East Ward, Chengdu 610072, China
  • Received:2017-04-17 Online:2017-10-25 Published:2017-10-25

Abstract: Objective To improve the quality of oocyte, in vivo maturation rate and in vitro fertilization rate in KM mice. Methods One-hundred KM mice were super-ovulated, the changes of the oocyte nucleus and the first polar body position, the perivitelline space changes, oocyte morphology, in vivo maturation rates and in vitro fertilization rates were observed and calculated. Results The oocyte quality was best after 12 h、14 h of injection with human chorionic gonadotropins (hCG), and oocyte in vivo maturation rate and in vitro fertilization rate were the highest after 13 h. Conclusion Collection of oocyte after 13 h of superovulation was the best time for in vitro fertilization of KM mouse.

Key words: Mice, Superovulation, Collecting oocyte time, Oocyte quality, In vivo maturation rate, In vitro fertilization rate

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