Reproduction Abstracts

To determine whether chromosomes in porcine first polar body (PB1) can complete the second meiotic division and participate in subsequent normal embryo development, we examined developed competence of chromosome in PB1 that had been injected into enucleated MII stage oocytes by nuclear transfer method (chromosomes replacement group, CR group). After parthenogenetic activation (PA) and in vitro fertilization (IVF), the cleavage rate of reconstructed oocytes in IVF grou...