Table 9.
The main effect of time of introduction of feeds (post hatch) and strain on gut morphology of broilers at 8 weeks.
| Strain |
SEM | P Value | Time |
SEM | P Value | ||||
|---|---|---|---|---|---|---|---|---|---|
| AA | MS | 4 h | 24 h | 48 h | |||||
| DUODENUM | |||||||||
| Villi height (μm) | 960.00b | 1154.00a | 47.69 | 0.014 | 1242.00a | 1000.00b | 980.00b | 58.41 | 0.008 |
| Crypt depth (μm) | 205.56 | 366.67 | 120.75 | 0.364 | 250.00 | 173.33 | 75.00 | 147.89 | 0.461 |
| Apical width (μm) | 36.67 | 40.00 | 3.66 | 0.532 | 35.00b | 50.00a | 30.00b | 4.48 | 0.021 |
| Basal width (μm) | 90.00b | 133.00a | 8.39 | 0.003 | 90.00b | 170.00a | 75.00b | 10.27 | 0.000 |
| JEJUNUM | |||||||||
| Villi height (μm) | 988.89a | 716.67b | 71.47 | 0.020 | 900.00 | 850.00 | 808.33 | 87.53 | 0.764 |
| Crypt depth (μm) | 180.00 | 156.67 | 9.81 | 0.119 | 190.00 | 165.00 | 150.00 | 12.02 | 0.099 |
| Apical width (μm) | 46.67 | 53.33 | 4.81 | 0.347 | 45.00b | 65.00a | 40.00b | 5.89 | 0.026 |
| Basal width (μm) | 93.33 | 100.00 | 10.91 | 0.673 | 100.00 | 110.00 | 80.00 | 13.34 | 0.306 |
| ILEUM | |||||||||
| Villi height (μm) | 850.00a | 624.44b | 40.29 | 0.002 | 666.67 | 750.00 | 795.00 | 49.28 | 0.216 |
| Crypt depth (μm) | 253.33a | 181.11b | 17.07 | 0.011 | 245.00 | 216.67 | 190.00 | 20.91 | 0.219 |
| Apical width (μm) | 65.56 | 56.67 | 7.53 | 0.420 | 48.33 | 60.00 | 75.00 | 9.22 | 0.165 |
| Basal width (μm) | 100.00 | 100.00 | 10.97 | 1.000 | 100.00 | 100.00 | 100.00 | 13.44 | 1.000 |
abMean values in the same row having different superscripts are significantly different (P < 0.05).
AA- Arbor acre MS- Marshal.