Table 3. Observed means with standard deviations, and predicted means of most pertinent PVM-susceptibility traits.
| Generation | LVLd7 (log10 PFU/g) | ΔBWd0–d7 (%) | ΔEBd6–d7 (%) | |||
| Body weight loss | ||||||
| Obs ± SD | Predicted | Obs. ± SD | Predicted | Obs. ± SD | Predicted | |
| ± SD | ||||||
| P1 (SJL/J) | 2.9±0.47 | 2.9 | 3.9±5.8 | 1.9 | 0.3±4.0 | 0.2 |
| P2 (129/Sv) ((((129/Sv) | 6.8±0.44 | 6.8 | 16.1±4.7 | 14.1 | 11.1±9.7 | 10.7 |
| F1 | 5.5±0.66 | 5.5 | 12.2±4.1 | 10.5 | 14.8±12.3 | 14.3 |
| F2 | 5.2±1.13 | 5.2 | 9.25±6.6 | 10.5 | 9.7±14.0 | 9.9 |
LVLd7, day 7 pi lung viral load (log10 PFU/g); ΔBWd0–d7, body weight loss as measured 7 days pi (%); ΔEBd6–d7, change in expiratory balance between days 6 and 7 pi (%).
P1, PVM-resistant parental strain (SJL/J) and P2, PVM-susceptible parental strain (129/Sv). Predicted means were calculated by the joint scaling test. Obs., observed.