Table 1.
Calf characteristics in vaccine groups A and B.
| Variable | Vaccine group (n = 935) |
P | |
|---|---|---|---|
| A (n = 468) | B (n = 467) | ||
| Age at vaccination in days (mean ± SD) | 25.97 ± 11.62 | 25.85 ± 11.54 | 0.88 |
| Duration of in-house risk period in days (mean ± SD) | 56.52 ± 28.25 | 57.00 ± 27.93 | 0.80 |
| Parity | |||
| 1 (n = 279) | 143 | 136 | 0.51 |
| 2 (n = 157) | 72 | 85 | |
| 3 and more (n = 499) | 253 | 246 | |
| Sex | |||
| Male (n = 447) | 235 | 212 | 0.14 |
| Female (n = 488) | 233 | 255 | |
| Occurrence of diseases before vaccination | |||
| No disease (n = 873) | 437 | 436 | 1 |
| Respiratory (n = 6) | 3 | 3 | |
| Other than respiratory a (n = 56) | 28 | 28 | |
SD, Standard deviation.
a
All neonatal diseases were diagnosed and treated (i.e., septicaemia, diarrhea, umbilical infection, others).