TABLE 1.
Animal characteristics at feedlot arrival
| Variable | Control group | CTC group | P value |
|---|---|---|---|
| No. of animals | 150 | 150 | |
| No. of females | 60 | 90 | 0.001a |
| No. that received prior antimicrobial treatment | 8 | 4 | 0.234a |
| Oxytetracycline | 0 | 1 | |
| Oxytetracycline and tildipirosin | 1 | 0 | |
| Ceftiofur sodium | 6 | 3 | |
| Florfenicol | 1 | 0 | |
| Body wt (mean ± SE) (kg) | 181.3 ± 2.3 | 180.9 ± 2.3 | 0.893b |
| Age (mean ± SE) (mo) | 5.6 ± 0.0 | 5.5 ± 0.0 | 0.678b |
a
P values are based on likelihood ratio test comparing the proportions between the two groups.
b
P values are based on two sample t test comparing the mean values between the two groups.