Fig. 5

Total coliforms in mesenteric lymph nodes and spleen of enterotoxigenic E. coli F18 challenged pigs fed diets supplemented with probiotics on d 21 post inoculation. ^a,bMeans without a common superscript are different (P < 0.05). Pigs supplemented with probiotics PRO1 or PRO2 had less (P < 0.05) total coliforms in mesenteric lymph nodes compared with pigs in the control group. Each least squares mean represents 8–10 observations. PRO1 = Bacillus subtilis DSM 32540; PRO2 = Bacillus pumilus DSM 32539