Table 1.
Final selected linear mixed-effects model (M1) using the VNT titer in the sows (n = 5) as continuous response variable, the time after vaccination, and strains as possible explanatory nominal variables.
| Random effects | Variance | SD | ||
|---|---|---|---|---|
| Sow | 0.007 | 0.08 | ||
| Residual | 0.05 | 0.23 | ||
| Fixed effects | Estimate | SE | t-Value | |
| Intercept | −0.3 | 0.07 | −4.5 | |
| 0.9 weeks post vaccination | 0.0 | 0.08 | 0.0 | |
| 1.9 weeks postvaccination | 0.6 | 0.08 | 7.4 | |
| 2.9 weeks postvaccination | 0.6 | 0.08 | 6.8 | |
| 3.9 weeks postvaccination | 0.7 | 0.08 | 8.6 | |
| 4.9 weeks postvaccination | 0.8 | 0.08 | 9.9 | |
| 5.9 weeks postvaccination | 0.7 | 0.08 | 9.0 | |
| 6.9 weeks postvaccination | 0.7 | 0.08 | 8.7 | |
| 7.9 weeks postvaccination | 0.9 | 0.08 | 10.3 | |
| 8.9 weeks postvaccination | 1.0 | 0.08 | 12.4 | |
| 9.9 weeks postvaccination | 0.8 | 0.08 | 9.8 | |
| Strain A TUR/14/98 | 0.5 | 0.04 | 12.4 | |
| Strain O Manisa | 0.5 | 0.04 | 10.8 | |
The animal was included as random variable.