目前,常规体外受精(IVF)一般是在取卵后4~6 h进行,精卵共孵育时间16~20 h。文献[1]报道受精前卵母细胞培养时间多少对结果无明显影响,缩短精卵共孵育时间也就是短时受精可提高胚胎质量和种植潜能[2]。本研究对缩短卵母细胞的培养及精卵共孵育时间,卵母细胞受精后脱去及保留颗粒 At present, conventional in vitro fertilization (IVF) is generally carried out 4 to 6 h after ovulation, sperm incubation time 16 ~ 20 h. Literature [1] reported that the number of oocyte culture before fertilization time had no significant effect on the results, shorten the sperm co-incubation time is short-term fertilization can improve embryo quality and planting potential [2]. This study to shorten the oocyte culture and sperm co-incubation time, the oocyte after fertilization and retain the particles