Table 6.
Effect of encapsulated L-Lys-HCl and DL-Met supplementation on intestinal villus height and crypt depth of laying hens1,2
| Item | Control | 80CLM | 60CLM | P-value |
|---|---|---|---|---|
| Duodenum | ||||
| Villus height, μm | 1,615 ± 73.9 | 1,563 ± 126.9 | 1,504 ± 68.8 | 0.712 |
| Crypt depth, μm | 261.8 ± 18.3 | 334.3 ± 28.2 | 292.6 ± 27.6 | 0.165 |
| Villus height: crypt depth | 6.3 ± 0.4a | 4.7 ± 0.4b | 5.4 ± 0.5ab | 0.020 |
| Jejunum | ||||
| Villus height, μm | 1,249 ± 92.1 | 1,374 ± 131.1 | 1,325 ± 100.7 | 0.718 |
| Crypt depth, μm | 300.8 ± 16.5 | 278.4 ± 9.6 | 245.4 ± 25.5 | 0.132 |
| Villus height: crypt depth | 4.3 ± 0.6 | 5.0 ± 0.6 | 5.6 ± 0.6 | 0.364 |
| Ileum | ||||
| Villus height, μm | 991.6 ± 61.6 | 924.2 ± 82.7 | 1,098.0 ± 107.6 | 0.378 |
| Crypt depth, μm | 230.6 ± 23.8 | 203.1 ± 27.5 | 208.6 ± 22.6 | 0.712 |
| Villus height: crypt depth | 4.5 ± 0.5 | 4.9 ± 0.6 | 5.6 ± 0.9 | 0.509 |
1Basal diet supplemented with encapsulated L-lys HCL and DL-met at 60% (60 CLM) or 80% (80CLM) of the control levels.
2Data were presented as the mean ± SD (n = 6).
a,bMeans with different superscripts within the same line differ significantly, P < 0.05.