Fig. 3

Effects of Enteromorpha prolifera polysaccharides on the relative mRNA expression of barrier function (A), antioxidant (B) and immune (C) related genes of ileum in yellow-feathered broilers under heat stress. TN Thermal neutral zone, HS Heat stress, HSE Heat stress group supplemented 0.1% Enteromorpha prolifera polysaccharides. a,bDifferent superscripts indicate a significant difference between groups (P < 0.05)