No. of pronuclear ebmryos/total recovered. 原核胚数/回收总数。
The activation of the oocyte was determined by pronuclear formation. 已激活卵母细胞之判定，系以原核之形成予以确认。
A total of 38 males and 24 femals irradiated at the pronuclear stage survived and were available for testing. 在原核期受照中共有38只雄性和24只雌性存活下来，并可供试验。
A total of 38 males and 24 females irradiated at the pronuclear stage survived and were available for testing. 在原核期受照中共有38只雄性和24只雌性存活下来,并可供试验。
The production of transgenic mice by pronuclear microinjection was influenced by a lot of factors. 摘要研究了移植方法和培养液对显微注射法生产转基因小鼠的影响。
Several techniques have been reported to produce transgenic animals including Pronuclear microinjection,Retrovirus-mediated techniques,Embryonic stem cell-mediated techniques and etc. 目前制备转基因动物的方法主要有显微注射法,反转录病毒感染法,胚胎干细胞法等。
