Figure 7

Gross pathological lesions in ceca of chickens in each group. 7 days after the challenge with E. tenella, no obvious lesions were observed in the ceca of chickens in the TBS control group (A). In the phageY + Alg (B), phageG + Alg (C), and phageY (E) groups, slight swelling of the ceca was noted. The phageG group exhibited slight caecal swelling along with a few lesions on the serosal surface (F). More pronounced caecal swelling with serous haemorrhagic spots was observed in both ther phageV + Alg and phageV groups (D and G). In the E. tenella infection group (H) and the Alg group (I), the cecal wall appeared thickened, with scattered haemorrhagic spots and grey lesions on the serosal surface.