The concentration of lactic acid was greatest in the cranial and midsmall intestine of the piglets fed the FLF diet (P≤0.01; Table 7). The concentration in the cecum in the FLF group was greater than in the FLG group (P<0.05), with the same tendency (P<0.10) in the caudal small intestine. The gastric concentration of ethanol was lowest in the piglets fed the DRY diet (P ≤0.05). In the stomach and mid small intestine, ethanol concentration was greatest in the FLG-fed piglets, and, in the caudal small intestine, greater than in the FLF group (P<0.01). The concentration of the sum of acetic, propionic, and butyric acids in the caudal small intestine was greater in the FLG group than in the animals fed the DRY diet (P<0.05). In the cecum, the concentration was greater in the pigs fed the DRY diet than in those fed the FLF (P= 0.05); in the midcolon, it was greatest in the DRY group (P<0.05).
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