Fig. 6

Effect of Eimeria spp. challenge and methionine supplementation on the expression of genes encoding claudin-1, CLDN1 and occludin, OCLN in the jejunum of broiler chickens 144 h post-inoculation. Results are expressed as arbitrary units, AU, and are presented as mean and standard error. ^a,b Different letters represent significant differences between treatments by the Tukey test, P < 0.05. NS = non-supplemented diet; dl-Met = diet supplemented with free methionine; dl-MMet = diet supplemented with methionine dipeptide