Pensaert M B. Porcine epidemic diarrhea[A]. In: Disease ofSwine (7th edition)[M]. USA: Iowa State Universi ty Press,1992. 293-298.
[2]
Sherman D M, Acres S D, Sadowski P L, et a l. Protection of calves against fatal en teric colibacillosis by orally administered Escherichia coli K99-specipic monoclonal antibody[J]. Infect Immun, 1974, 10: 770-782.
[3]
Kweon C, Kwon B,Woo S, et a l. Immunoprophylactic effect of chicken egg yolk immunoglobulin(IgY) against porcine ep-idemic diarrhea in piglets[J]. J Vet Med Sci, 2000, 62(9) :961-964.