Table 7.
Intestinal lesion score and ileal morphology of broiler chickens at 28 days of age according to the experimental treatments (Trial 2).
| Lesion Scores 1 | ||||
|---|---|---|---|---|
| Treatment | Duodenum | Ileum | Caeca | Whole Intestine |
| Control | 3.56 a | 1.50 a | 0.25 | 5.31 a |
| Avilamycin | 1.00 b | 0.31 b | 0.63 | 1.94 b |
| Precision biotic | 0.81 b | 0.62 ab | 0.69 | 2.13 b |
| SEM | 0.42 | 0.32 | 0.32 | 0.66 |
| p Value | 0.007 | 0.005 | 0.16 | 0.005 |
| Ileal Morphology | ||||
| Treatment | Mucosa Thickness (µm) | Villus Length (µm) | Crypt Depth (µm) | Villus/Crypt |
| Control | 584.7 b | 323.5 b | 246.5 | 1.380 b |
| Avilamycin | 774.4 a | 517.7 a | 242.2 | 2.349 a |
| Precision biotic | 782.4 a | 461.1 a | 306.4 | 1.633 b |
| SEM | 48.4 | 45.8 | 17.6 | 0.22 |
| p Value | 0.02 | 0.04 | 0.06 | 0.03 |
1 Lesions were scored based on a 0–4 scale at each segment of the intestine, and then added up for the entire intestine. a,b values in a row column with no common superscripts differ significantly at p < 0.05. Mean values are based on two birds per replicate and eight replicates per treatment.