Mucosal-to-serosal fluxes of FD4 and HRP for basal and monochloramine-stimulated colonic mucosa of pigs born to control or antibiotic-treated sows and slaughtered at different ages (LSmeans and SEM, n = 6–8 per treatment and age).

1Treat.: Treatment of sows pre- and post-partum (control versus antibiotic); age (d14 and d28, unweaned; d42 weaned from d28); treat*age: treatment by age interaction.2nd: not calculated by the analysis of variance (MIXED model) due to low and unbalanced numbers (n = 2–3) of available HRP data at day 28.α, β LS means with different superscript letters in a row differ (PMucosal-to-serosal fluxes of FD4 and HRP for basal and monochloramine-stimulated colonic mucosa of pigs born to control or antibiotic-treated sows and slaughtered at different ages (LSmeans and SEM, n = 6–8 per treatment and age).