8Chae C, Kim O, Cho C, et al. Prevalence of porcine epidemic diar- rhoea virus and transmissible gastroenteritis virus in Korea pigs [J]. J Vet Res,2000,147(2) :606-608.
9Kweon C, Kwon B, Woo S, et al. Immunoprophylactic effect of chicken egg yolk immunoglohulin(IgY) against porcine epidemic diarrhea in piglets[J]. J Vet Med Sci, 2000,62(9) :961-964.
10Schade R, Zhang X Y, Terzolo H P. Bioactive egg compounds[J]. Berlin-Heidelberg : Springer, 2007, (3) :213 - 222.