When direct injection was used for nuclear transfer, the survive rate (78.2%) and cleavage rate (41.6%) of fetal skin cells were significantly lower than those of adult ear fibroblasts (88.6%, 57.4%) and fetal fibroblasts (85.8%, 65.0%).

• 当用直接注射法进行核移植时；胎儿皮肤细胞注核后的存活率(78.；2%25)、卵裂率(41