Experiment | Group | Interstitial pneumonia* |
|---|
1
|
C1 + B
| 5.0 ± 2.8a |
A + A
| 6.5 ± 3.8a |
| |
A + B
| 6.8 ± 1.3a |
2
|
C2 + A
| 8.7 ± 2.3b† |
B + B
| 6.5 ± 2.6a |
| |
B + A
| 5.3 ± 0.6a |
- Different superscript letters indicate significant differences (p < 0.05) between the groups in a given experiment according to the Kruskal-Wallis test (Conover-Inman test for multiple comparisons). No significant differences were seen for the double challenged groups between experiment 1 and 2.
- * Microscopic interstitial pneumonia was evaluated in 4 portion of lung corresponding to the apical, cardiac, diaphragmatic and intermediate lobes, scored in a 4-grade scale (0 = absent to 3 = severe). The values shown correspond to the average of the summatory of scores for each pig in a given group and the standard deviation of the summatories. With this calculation, maximum possible average is 12.
- † In the case of group C2 + A; p = 0.06.
Veterinary Research