Table 4.
Evaluation of BRD mortality outcome using least squares means (±SE) of production performance and clinical measures of animals with nonfatal (survived) and fatal (died) disease
| Survived (n = 121) | Died (n = 16) | P-value | |
|---|---|---|---|
| In-weight, kg/animal | 421.5 ± 4.74 | 430.1 ± 13.04 | 0.535 |
| DOF at first BRD pull | 22 ± 0.8 | 15 ± 2.3 | 0.011 |
| ADG to first BRD pull, kg/animal/d | 0.3 ± 0.15 | −0.6 ± 0.44 | 0.044 |
| Weight at first BRD pull, kg/animal1 | 436.5 ± 2.93 | 413.7 ± 8.04 | <0.001 |
| Overall visual score, score 0 to 21 | 9.0 ± 0.29 | 10.9 ± 0.79 | 0.029 |
| Rectal temperature, oC | 40.0 ± 0.07 | 40.0 ± 0.19 | 0.915 |
| CALA score, score 1 to 3 | 2.0 ± 0.04 | 2.1 ± 0.11 | 0.302 |
| Number of BRD treatments | 2.0 ± 0.14 | 3.4 ± 0.37 | <0.001 |
1In-weight was used as a covariate.