Table 6.
Item | Stocking density (birds/m2) |
SEM | P-value | ||||
---|---|---|---|---|---|---|---|
15 | 20 | 25 | 30 | 35 | |||
Duodenum | |||||||
Villus height (μm) | 726.95 | 642.89 | 557.83 | 595.56 | 663.60 | 24.28 | 0.224 |
Crypt depth (μm) | 173.49 | 169.90 | 169.67 | 182.34 | 173.58 | 3.81 | 0.855 |
Villus width (μm) | 148.86 | 139.63 | 153.20 | 162.58 | 161.70 | 3.96 | 0.339 |
Muscularis thickness (μm) | 334.19 | 319.64 | 300.29 | 298.48 | 283.06 | 7.98 | 0.297 |
Villus height/crypt depth | 3.98 | 3.74 | 3.30 | 3.28 | 3.83 | 0.12 | 0.270 |
Jejunum | |||||||
Villus height (μm) | 676.96a | 743.15a | 704.24a | 525.20b | 587.52b | 26.28 | 0.042 |
Crypt depth (μm) | 170.40b | 169.13b | 176.68b | 185.91b | 244.73a | 8.15 | 0.007 |
Villus width (μm) | 100.02 | 89.02 | 92.06 | 90.69 | 106.81 | 3.44 | 0.455 |
Muscularis thickness (μm) | 334.12 | 299.11 | 323.36 | 302.80 | 312.28 | 6.12 | 0.358 |
Villus height /crypt depth | 4.17a | 4.40a | 4.35a | 2.81b | 2.47b | 0.24 | 0.007 |
Ileum | |||||||
Villus height (μm) | 711.17 | 673.29 | 767.80 | 887.77 | 837.24 | 34.68 | 0.278 |
Crypt depth (μm) | 155.56b | 152.20b | 173.66ab | 173.23ab | 209.73a | 6.70 | 0.040 |
Villus width (μm) | 115.75 | 119.80 | 110.84 | 125.08 | 108.47 | 4.00 | 0.717 |
Muscularis thickness (μm) | 281.74 | 273.12 | 306.58 | 273.70 | 289.55 | 4.79 | 0.147 |
Villus height /crypt depth | 4.63 | 4.41 | 4.49 | 5.18 | 4.09 | 0.18 | 0.448 |
Means with different superscripts within the same column differ significantly (P < 0.05).
Each value represents the mean of 6 replicates.