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Trial 2. Cecum of broilers (14 days). (A) Non-challenged group—normal villi and crypts of Lieberkhün. (B) SH-Challenged group—congestion grade III. (C) SH-challenged group—cell infiltrate in lamina propria grade II. (D) Non-challenged group—villus height and thickness axes of measurement. (E) SH-challenged group—villus height and thickness axes of measurement. Hematoxylin and eosin plus Alcian Blue, 400×.
