Fig. 2

AOS increases the gut function of broiler chickens. Jejunum gut morphometrics: (A) villus length, (B) crypt depth, and (C) villus length/crypt depth ratio; The (D) maltase, (E) sucrase, (F) ALP, and (G) Na⁺/K⁺-ATPase activities in the small intestine of broiler chickens supplemented with or without AOS; Relative gene expression of (H) cytokines, (I) nutrient transport-related genes, and (N) tight junction proteins of broiler chickens fed diets containing AOS. Data are expressed as the mean ± SD (n = 8). ^*P < 0.05, ^**P < 0.01