5Cui Z, Du Y, Zhang Z, et al. Comparison of Chinese field strains of avian leukosis subgroup J viruses with prototype strain HPRS-103 and United States strains. Avian Dis, 2003, 47:1321-1330.
65Snoyenbos, G.H.199 l.Pullorum disease, p.73-87.ln B. W. Calnek(ed.), Diseases ofpoultry, 9th ed..Iowa State University Press, Ames.
7Wigley, P., Berchieri Jr., A., Page, K.L., Smith, A. L., Barrow, P.A., 2001. Salmonella enterica serovar Pullorum persists in splenic macrophages and in the reproductive tract during persistent.
8Cui Z, Sun S, Zhang Z, et al . Cui Z, Sun S, Zhang Z, Meng S. Simultaneous endemic infections with subgroup J avian leukosis virus and reticuloendothelios is virus in commercial and local breeds of chickens.Avian Pathol, 2009, 38(6) : 443-448.
10Stedman N L, Brown T P. Body weight suppression in broilers naturally infected with avian leu.kosis virus subgroup J. Avian Dis, 1999, 43(3):604-610.