Observation of Immunogenic Effect on Egg Breeders Inoculated with Infectious Bronchitis LDT3-A Strains Freeze-dried Vaccine
ZHANG Dan-jun, DAI Yin, ZHAO Rui-hong, HU Xiao-miao, PAN Xiao-cheng, LIU Wei, SHEN Xue-huai, SONG Xia
. 2014, (10): 266 -269 .