Pigs fed the medium and coarse diets had lower
stomach ulceration scores (0.20 and 0.25, respectively) than
those fed the mixed diet (0.69). The highest score was
recorded for pigs fed the fine diet (1.87; Table 3). All the
stomachs of the animals fed the fine diets had lesions, and
ulcerations were present only in this group (Figure 1).
Approximately 80% of the animals fed the medium and
coarse diet had stomachs with no lesions. There were no
significant differences between the treatment groups for the
villous tip-crypt base, villous height, or crypt depth (Table
3). Epithelial thickness was significantly thinner (p