河南部分规模化猪场猪传染性胸膜肺炎的血清学调查

李轲;张方杰

Serological Survey of Porcine Contagious Pleuropneumonia in Partial Intensive Pig Farms of Henan Area

LI Ke;ZHANG Fang-jie

China Animal Husbandry & Veterinary Medicine . 2009, (7): 181 -183 .