In the non-treated infected group (G5), the cecal villi exhibited desquamation of the mucosal epithelium,blunting, and degeneration. Various developmental stages of Eimeria, including gametocytes andoocysts, were detected, along with massive infiltration of heterophils and mononuclear cells in the laminapropria. Schizonts containing merozoites were present in the lamina propria of caecal crypts andsubmucosal glands. The cecal lumen contained sloughed enterocytes, schizonts, free merozoites, andinflammatory cell infiltrations.