Construction of defined mutations of avian pathogenic Escherichia coli strain and detection of tsh gene in avian isolates
CHEN Xiang;LIU Jing;MAIO Xiao-qing;WANG Xiao-quan;GAO Song;JIAO Xin-an;LIU Xiu-fan
ACTA VETERINARIA ET ZOOTECHNICA SINICA . 2007, (5): 493 -499 .