6Bhandari S,Xu B,Nyachoti C,et al.Evaluation of alternatives to antibiotics using an Escherichia coli K88+model of piglet diarrhea:Effects on gut microbial ecology[J].Journal of animal science,2008,86(4):836.
7Goransson L,Lange S,Lonnroth I.Post weaning diarrhoea:focus on diet[J].Pig News and Information,1995,16(3):89-91.
9Bhandari S, Xu B, Nyachoyi C, et al. Evaluation of alternatives to antibiotics using an Escheriehia toll K88+ model of piglet diarrhea: Effects on gut microbial ecology[J]. Journal of animal science, 2008, 86(4): 836.
10Murray M. Salmonella: virulence factors and enteric salmonellosis [J]. Journal of the American Veterinary Medical Association, 1986, 189(2): 145.