2Jeffrey L Watts, Thomas R Shryock, Michael Apley, et al. Performance standards for antimicrobial disk and dilution susceptibility tests for bacteria isolated from animals[ M]. 3rd ed. Wayne Pennsylvania, USA: Standards Institute, 2008: 13-89.
3Dhillon A S, Jack O K. Two outbreaks of colibacillosis in commercial caged layers[J]. Avian Dis, 1996,40:742-746.
4Usman B A, Diaxra S S. Prevalent diseases and mortality in egg type layers: An overview[ J]. International Journal of Poultry Science,2008,7(4) :304-310.
5Zanella A, Alborali G L, Bardotti M, et al. Severe Escherichia coli Olll septieaemia and polyserositis in hens at the start of lay [J]. Avian Pathology, 2000,29:311-317.
6Wooley R E, Gibbs P S, Brown T P, et al. Chicken embryo lethality assay for determining the virulence of avian Escherichia coli isolates[J]. Avian Dis, 2000,44:318-324.
7Timothy J J, Subhashinie K, Yvonne W, et al. The genome sequence of avian pathogenic Escherichia coli strain O1 : K1 : H7 shares strong similarities with human extraintestinal pathogenic E. coli Genomes[J]. Journal of Bacteriology, 2007, 189 ( 8 ) : 3228- 3236.
8Jeffrey L, Watts Thomas R, Shryock Michael Apley, et al Performance standards for antimicrobial disk and dilution susceptibility tests for bacteria isolated from animals[M].Approved Standard-Third Edition. Cli- nical and Laboratory Standards Institute(CLSI). 2008: 13-89.
9马迪根 M T,马丁克 J M,帕克 J.微生物生物学[M].北京:科学出版社,2001.149-153.
