Expression of Growth Differentiation Factor-9 in Bovine COCs during in vitro Maturation
OU YANG Xiao-qing, YANG Shu-qing, ZHANG Chun-qiang, LI Rui-lan, ZHANG Tong, ZHANG Jia-xin
ACTA VETERINARIA ET ZOOTECHNICA SINICA . 2013, (10): 1561 -1568 .  DOI: 10.11843/j.issn.0366-6964.2013.10.009