Table 7.
Effect of dietary treatments on intestinal morphology1 in piglets challenged by enterotoxigenic Escherichia coli (ETEC).
| Treatments2 | Duodenum | Jejunum | Ileum | ||||||
|---|---|---|---|---|---|---|---|---|---|
| VH (μm) | CD (μm) | VCR | VH (μm) | CD (μm) | VCR | VH (μm) | CD (μm) | VCR | |
| NC | 538.40 ± 31.35a | 380.18 ± 40.74a b | 1.42 ± 0.22 | 540.93 ± 42.20a | 277.54 ± 19.39 | 1.99 ± 0.10a | 485.98 ± 64.18 | 251.51 ± 11.96b | 1.99 ± 0.24a |
| PC | 485.56 ± 24.61b c | 424.05 ± 15.49a | 1.23 ± 0.15 | 445.22 ± 39.43b | 284.98 ± 15.23 | 1.59 ± 0.07b | 405.52 ± 57.17 | 280.38 ± 18.63a | 1.43 ± 0.07b |
| CS | 455.23 ± 27.81c | 354.50 ± 43.60b | 1.30 ± 0.08 | 441.19 ± 28.17b | 294.37 ± 16.97 | 1.57 ± 0.13b | 397.18 ± 45.17 | 252.77 ± 13.56b | 1.54 ± 0.22b |
| GOD | 513.53 ± 32.84a b | 365.58 ± 26.72b | 1.29 ± 0.12 | 475.79 ± 39.02b | 285.55 ± 11.42 | 1.62 ± 0.12b | 454.63 ± 10.67 | 246.88 ± 10.24b | 1.85 ± 0.05a |
| p value | 0.001 | 0.027 | 0.218 | 0.003 | 0.438 | <0.001 | 0.052 | 0.007 | 0.001 |
a-c
Values with different superscripts within the same column differ significantly (p < 0.05).
1
VH, villus height; CD, crypt depth; VCR, VH to CD ratio.
2
NC, negative control (piglets were free of the challenge); PC, positive control (piglets were challenged with ETEC on the 11th day of the experiment); CS, PC piglets supplemented with 40 g/t colistin sulfate; and GOD, PC piglets supplemented with 200 g/t glucose oxidase. Samples were analyzed on the 21st day of the experiment.