Table 5.
Effects of coccidiosis vaccination on jejunal morphology and duodenal pH of broilers in 36 d post-hatch1,2.
| Item | NC | PC | VAC | SEM | P-value3 |
|---|---|---|---|---|---|
| 12 d | |||||
| Villus height, μm | 645 (2.81) | 669 (2.82) | 693 (2.84) | 23.0 (0.015) | 0.392 |
| Crypt depth, μm | 124 (2.08) | 118 (2.82) | 145 (2.84) | 5.7 (0.028) | 0.082 |
| Villus height to crypt depth | 5.81 (0.75) | 6.60 (0.81) | 5.38 (0.71) | 0.372 (0.037) | 0.159 |
| Villus surface area, mm2 | 0.10 (5.01) | 0.10 (5.01) | 0.10 (4.98) | 0.006 (0.025) | 0.772 |
| pH | 5.64 | 5.61 | 5.57 | 0.074 | 0.773 |
| 20 d | |||||
| Villus height, μm | 774 (2.89) | 730 (2.86) | 786 (2.90) | 24.1 (0.014) | 0.189 |
| Crypt depth, μm | 200 (2.28) | 188 (2.26) | 211 (2.31) | 13.4 (0.029) | 0.561 |
| Villus height to crypt depth | 4.58 (0.64) | 4.40 (0.62) | 4.36 (0.62) | 0.352 (0.033) | 0.891 |
| Villus surface area, mm2 | 0.13 (5.10) | 0.13 (5.11) | 0.13 (5.12) | 0.006 (0.021) | 0.800 |
| pH | 6.11 | 6.08 | 6.12 | 0.028 | 0.628 |
| 36 d | |||||
| Villus height, μm | 1,058 (3.02) | 1,100 (3.04) | 1,005 (3.01) | 27.7 (0.012) | 0.071 |
| Crypt depth, μm | 177 (2.23) | 153 (2.17) | 169 (2.21) | 14.4 (0.035) | 0.507 |
| Villus height to crypt depth | 7.10 (0.83) | 8.14 (0.90) | 6.96 (0.82) | 0.672 (0.040) | 0.306 |
| Villus surface area, mm2 | 0.19 (5.28) | 0.20 (5.30) | 0.19 (5.26) | 0.001 (0.029) | 0.653 |
| pH | 6.12 | 6.15 | 6.12 | 0.015 | 0.166 |
1
Values are LSMeans of 10 replicate pens with transformed data (log10) used for statistical analysis in parentheses.
2
NC, negative control; PC, positive control, birds were given an in-feed anticoccidial drug; VAC, vaccinated, birds were given a commercial dose of vaccine on 0 d.
3
P-values represent transformed data (log10).