LIU Peng, LI Peng-hao, ZHANG Yi, ZHU Qiao-yan, LI Xiang-dong, HUANG Yu-xin, TIAN Ke-gong (National Research Center for Veterinary Medicine, Luoyang 471003, China)
High-density Fermentation Process of Mycoplasma hyopneumoniae HN0613 Strain and Its Immune Efficacy Evaluation