4Smith L M, Brown S R, Howes K,ef al. Development and application of polymerase chain reaction (PCR) tests for the detection of subgroup J avian leukosis virus[j]. Virus Res, 1998,54( 1) :87-98.
5Zavala G,Cheng S. Detection and characterization of avian leukosis virus in Marek's disease vaccines [j]. Avian Diseases, 2006,50(2):209-215.
6Cui 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 [j]. Avian Diseases,2003,47(4):1321-1330.