Table 6. Effects of citric acid and xylanase supplementation on jejunal morphology in broilers challenged with necrotic enteritis at 21 d of age1.
| Main effect | Villus height (VH) | Crypt depth (CD) | VH:CD |
|---|---|---|---|
| Citric acid (g/kg) | |||
| 0 | 1576b | 234 | 6.73b |
| 30 | 1642a | 231 | 7.17a |
| Xylanase (mg/kg) | |||
| 0 | 1582 | 230 | 6.88 |
| 200 | 1602 | 231 | 6.93 |
| SEM | 30.2 | 2.3 | 0.24 |
| P-value | |||
| Citric acid | 0.001 | 0.092 | 0.001 |
| Xylanase | 0.266 | 0.109 | 0.321 |
| Citric acid×xylanase | 0.871 | 0.317 | 0.418 |
a–b
Values in the same column with different superscripts are significantly different (P<0.05).
1
Values are the means of 6 replicates with 2 chickens per group.