First polar body morphology affects potential development of porcine parthenogenetic embryo in vitro

• DOI: 10.1017/s0967199414000252
• Publication Date: 2014-07-03T09:58:57Z
• Authors: Junhe Hu; Chenzhong Jin; Hui Zheng; Qinyan Liu; Wenbing Zhu; Zhi Zeng; Juan Wu; Yang Wang; Jie Li; Xuejiao Zhang; Xianglin Liu; Jian Zhao
• Keywords: Parthenogenesis; Polar body; In vitro maturation

Previous studies have reported that the first polar body (PB1) morphology reflects embryo development competence, but effects of PB1 on porcine remain unknown. This study aims to determine whether ability is related oocytes' in vitro. The distribution type II cortical granules (CGs) matured oocytes grade B significantly greater compared with those grades A and C (71.43% versus 52.46% 50%; P 0.05). acetylation level embryos group other groups (P < 0.05), almost 2.5 times higher than A. Therefore, are more competitive cytoplasmic maturation further