Table 1.
Distribution of 341 calves enrolled in a randomized trial of 2 metaphylactic antimicrobial treatments by sex and week of arrival at a Georgia stocker facility
| Variable | Treatment | |||
|---|---|---|---|---|
| Enrofloxacin | Tulathromycin | Total | P* | |
| Sex | ||||
| Bull | 151 (87.8) | 142 (84.0) | 293 (85.9) | 0.317 |
| Steer | 21 (12.2) | 27 (16.0) | 48 (14.1) | |
| Arrival week | ||||
| March 26–April 1 | 41 (23.8) | 38 (22.5) | 79 (23.2) | 0.698 |
| April 2–8 | 43 (25.0) | 35 (20.7) | 78 (22.9) | |
| April 9–15 | 54 (31.4) | 56 (33.1) | 110 (32.3) | |
| April 23–29 | 34 (19.8) | 40 (23.7) | 74 (21.7) | |
*Chi-square test of independence.