Table 3.
LMM estimation for cattle performance that serves as a proxy for cattle morbidity
| ADG | AFC | HC | |
|---|---|---|---|
| Fixed effects | |||
| Constant | –4.536 (0.10)a | –1.129 (0.14) | 5.936 (7.80) |
| Mortality (MORT × 100) | –0.059 (0.00) | 0.050 (0.00) | 1.541 (0.80) |
| Log placement weight (lnCPW) | 1.147 (0.01) | 1.144 (0.02) | |
| Steer (STEER) | 0.238 (0.00) | –0.272 (0.01) | 1.782 (0.42) |
| Oct–Mar (WINTER) | 0.009 (0.00) | 0.004 (0.01) | |
| Antimicrobial (Upper Tier) | 28.605 (0.85) | ||
| Antimicrobial (Lower Tier) | 23.969 (0.84) | ||
| Random effectsb | |||
| Company | 0.016 | 0.016 | 14.417 |
| Cohort size | 0.002 | 0.003 | 0.501 |
| Placement year | 0.007 | 0.072 | |
| Observations | 48,341 | 48,341 | 1,357 |
| REML convergence | 41,678 | 75,791 | 9,334 |
aNumbers in parenthesis () are standard errors.
bVariances are reported for each random effect.
Source: Author’s calculations.