Estimation of Antibody in Vaccinated and Non-vaccinated Pig Farms with PRRS Vaccine

ZENG Xian-cheng, CHEN Xiao-shi, LUO Xian, WU Fa-dan, LIN Yi-ling, CHEN Jia-xiang, SHAO Liang-ping

Fujian Journal of Agricultural Sciences . 2011, (4): 552 -556 .