embryonic stage!是什么意思

网络释义

1)embryonic stage!,胚期2)blastocyst stage,囊胚期3)Blastula embryo,囊胚期胚胎

The speed of development of in vitro fertilized bovine oocytes to the blastocyst stage markedly decreased after ageing in vitro maturation.

体外成熟培养的牛老化卵受精后发育到囊胚期速度减慢。