Fig. 3

Effect of acetylsalicylic acid (125 ppm) on plasma urea contents after weaning. The numbers of replications were 32 individual pigs up to d 10 and were 24 pigs from d 14 to 21. All pigs were experimentally infected with an enterotoxigenic strain of E. coli on d 7 (after blood sampling), 8 and 9. ***P < 0.001, †P < 0.10