Fig. 2. Effects of functional feed additives on fluorescein isothiocyanate (FITC)-dextran permeability of tight junction in chicken intestinal epithelial cells (cIECs) after oxidative stress.

All data are presented as mean ± SE (n=6). ^a–eBars with different letters were significantly different (p < 0.05). PC, positive control; NC, negative control; Thr, threonine; Trp, tryptophan; Gly, glycine; VC, vitamin C; VE, vitamin E; VA, vitamin A; Cr, chromium; Se, selenium; Zn, zinc.