Table 7.
Serum PRRSV titersa
| Treatment | n | Day of experiment |
|||||
| 3 |
7 |
10 |
14 |
17 |
21 |
||
| NPN | 7 | 0.0 ± 0.00a | 2.7 ± 0.33a | 2.3 ± 0.39a | 1.8 ± 0.42a | 1.0 ± 0.81b | 0.4 ± 0.50b |
| NPD | 6 | 0.0 ± 0.00a | 3.3 ± 0.26b | 2.6 ± 0.49a | 2.1 ± 0.38a | 1.0 ± 0.68b | 0.1 ± 0.24b |
| SPN | 7 | 0.0 ± 0.00a | 2.8 ± 0.36a | 2.6 ± 0.45a | 2.5 ± 0.88a | 1.2 ± 0.64a,b | 0.4 ± 0.48b |
| SPDb | 7 | 0.0 ± 0.00a | 2.7 ± 0.43a | 2.5 ± 0.62a | 2.2 ± 0.43a | 1.9 ± 0.50a | 1.1 ± 0.59a |
a
Values are means±standard deviation of the log10 (TCID50/ml+1) for individual pig samples. Mean values within a column with the same superscript are not significantly different (p>0.05) using Duncan’s Multiple Range Test.
b
Three pigs in SPD treatment died during the experiment (days 10, 12, and 17).