5Jamalludeen N, Johnson R P, Shewen P E, et al.Evaluation of bacteriophages for prevention and treatment of diarrhea due to experimental enterotoxigenic Escherichia coli O149 infection of pigs [J].Veterinary Microbiology,2009,136 : 135-141.
6Koh S Y, George S, Brozel V, et al.Porcine intestinal epithelial cell lines as a new in vitro model for studying adherence and pathogenesis of enterotoxigenic Escherichia coli [J]. Veterinary Microbiology, 2008,130 : 191-197.
8Pang Y G, Jiang J Y, Wang L Z et al.Effects of immunological stress on immune response in different breeds of piglets [J]. Animal Husbandry and Feed Science,2009,1 (2) :28-31.