Table 7.
Effects of imbalanced dietary Met:SAA ratio on the morphology of the small intestine in weaned piglets.
| Item | Diets1 |
P-value | ||
|---|---|---|---|---|
| BD | L-MR | H-MR | ||
| Duodenum | ||||
| Villous height, μm | 959.2 ± 29.76 | 986.5 ± 32.88 | 1051.33 ± 26.3 | 0.099 |
| Crypt depth, μm | 869.28 ± 35.29b | 734.09 ± 23.5a | 861.65 ± 32.86b | 0.002 |
| VH:CD ratio | 1.19 ± 0.07a | 1.43 ± 0.07b | 1.29 ± 0.05ab | 0.034 |
| Jejunum | ||||
| Villous height, μm | 865.76 ± 19.42b | 387.4 ± 12.34a | 819.17 ± 54.27b | <0.01 |
| Crypt depth, μm | 622.97 ± 21.55b | 267.82 ± 8.97a | 568.02 ± 34.97b | <0.01 |
| VH:CD ratio | 1.5 ± 0.08 | 1.51 ± 0.06 | 1.45 ± 0.07 | 0.804 |
| Ileum | ||||
| Villous height, μm | 934.99 ± 24.96b | 883.99 ± 19.38ab | 854.63 ± 18.41a | 0.027 |
| Crypt depth, μm | 513.09 ± 19.44 | 505.97 ± 21.53 | 568.87 ± 21.31 | 0.066 |
| VH:CD ratio | 1.94 ± 0.08b | 1.92 ± 0.09b | 1.61 ± 0.07a | 0.006 |
Met = methionine; SAA = sulfur amino acid; VH:CD ratio = villous height to crypt depth ratio.
a, b Within a row, means sharing different superscript letters differ significantly (P < 0.05).
1
BD, a corn-soybean basal diet with Met:SAA ratio at 0.51; L-MR, a plasma powder diet with a low Met:SAA ratio at 0.41; H-MR, a fishmeal diet with a high Met:SAA ratio at 0.61.