Fig. 4

Effects of dietary BAO supplementation on tight junction protein levels and mRNA expression of mucin in the jejunum of weaned pigs challenged with LPS. A–D The protein expression of ZO-1, Occludin and Claudin-1. E–G The mRNA expression of MUC-1, MUC-2 and MUC-4. Dates are presented as means ± SEM (n = 3 for protein expression; n = 5 for mRNA expression). ^*P < 0.05; ^**P < 0.01. CON, corn-soybean meal basal diets group treated with saline; LPS, corn-soybean meal basal diets group treated with lipopolysaccharide; BAO + LPS, corn-soybean meal basal diets + 5 kg/t benzoic acid + 500 g/t essential oils group treated with lipopolysaccharide