4.[DB/OL].http://www. china-sd. net/jq/viewarticle. asp articleid = 236[ DB/OL].,.
5.[DB/OL].http ://www. hbpouhry. com/[ DB/OL].,.
6.[DB/OL].http://members. feedtrade. com. cn/articles/content. asp news-id = 34127 [ DB/OL].,.
7Yokoyama H, Peralta CR, Diaz R, et al. Passive protection effect of chichen egg yolk immunoglobulins against experimental enterotoxigenic Escherichia coil infection in neonatal piglets [ J ] , Infec Immun, 1992,60:998 - 1007.
8Poison A.Isolation of viral lgG antibodies from yolk of immunizedhens[J].Immunol Commun, 1980, 9(5): 475.
9Poiso n A.Improvements in the isolation oflgY from the yolks of eggs laid by immunized hens[J].Im unol Invest, 1985, 14(4): 323.
10Deigan T, Kelly J, Alwan A, et al .Comparative analysis of methods of purification of eg yolk immunoglobulin[J].Food and Agricultural Immunology, 2000, 12: 77-85.
