Table 9.
Effect of dietary enzyme supplementation on intestinal morphological structure of broiler chickens on d 28 (Experiment 2).
| Treatment1 | Jejunal morphology |
Ileal morphology |
||||
|---|---|---|---|---|---|---|
| VH (um)2 | CD (um) | VCR | VH (um) | CD (um) | VCR | |
| Con | 1,067.52 | 195.70 | 5.97 | 529.86c | 152.51a | 4.10b |
| GAS | 1,205.98 | 185.71 | 6.37 | 756.74a | 148.98ab | 4.52ab |
| MAS | 1,189.55 | 170.64 | 6.87 | 717.33ab | 132.17abc | 5.17a |
| PRO | 1,293.63 | 180.12 | 6.50 | 646.40abc | 126..53c | 5.22a |
| GAS+PRO | 1,100.96 | 163.58 | 6.54 | 619.51bc | 119.90c | 5.04a |
| MAS+PRO | 1,185.81 | 175.74 | 6.44 | 644.62abc | 132.26abc | 4.46ab |
| GAS+MAS+PRO | 1,192.53 | 165.42 | 7.40 | 662.24ab | 128.64bc | 4.51ab |
| SEM | 21.880 | 3.605 | 0.145 | 17.180 | 2.769 | 0.107 |
| P-value | 0.133 | 0.187 | 0.241 | 0.022 | 0.023 | 0.040 |
a-c
Means with different superscripts within the same row are significantly different (P < 0.05).
1
Con, control diet; GAS, α-galactosidase; MAS, β-mannanase; PRO, Protease; GAS+PRO, α-galactosidase+ Protease; MAS+PRO; β-mannanase+ Protease; GAS+MAS+PRO, α-galactosidase+β-mannanase +Protease.
2
Abbreviations: H, villi height; VCD, crypt depth; VCR, villus height to crypt depth ratio.