Effects of encapsulated cinnamaldehyde on jejunal gene expressions of CDH-1 (A), PCNA (B), ZO-1 (C), B⁰AT-1 (D), CAT-1 (E) and MG (F). NC, negative control, birds fed with basal diet; PC, positive control, birds fed with 30 mg/kg avilamycin premix; EOL, birds fed 50 mg/kg encapsulated cinnamaldehyde; EOH, birds fed 100 mg/kg encapsulated cinnamaldehyde; CDH-1, cadherin 1; PCNA, proliferating cell nuclear antigen; ZO-1, zonula occludens 1; B⁰AT-1, neutral amino acid transporter; CAT-1, cationic amino acid transporter; MG, maltase-glucoamylase. Significant differences are indicated by letters (a, b, c).