9Sun S, Cui Z. Epidemiological and pathological studies of sub- group J avian leucosis virus infections in Chinese local "yellow" chickens[J]. Avian pathol, 2007, :36(3) : 221-226.
10Notebom M H M,Veldkamp S,Verschueren C A. Jeal-Molecu la-biological characterization of chicken anemia virus[M], in: MS, Me-Nulty and J B Mc Feman eds virus/ms Disease of Poultry-New and Evolving Pathogen, 1994 : 195-213.
