Figure 1.

Effects of acidifiers on the gut morphology of the small intestine of piglets. The histopathology of the duodenum, jejunum, and ileum at day 14 (A) and day 49 (E). The morphology of villus height (B), crypt depth (C), and villus height/crypt depth (D) at day 14. The morphology of villus height (G), crypt depth (F), and villus height/crypt depth (H) at day 49. Values are means ± SD, n = 6. Labeled means in a row with different letters differ, p < 0.05. A given 2 means labeled with ^# indicates a tendency, 0.05 ≤ p < 0.10. At the red arrow, the intestinal villi were broken off and the intestinal epithelial cells were denatured and necrotic.