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Descriptive data about the individual stock bulls according to the herd of origin (homebred or purchased), region, vasectomy, vaccine status, BVD virus status and BoHV-1 serological status
| Number of participating bulls | |
|---|---|
| Herd of origin | |
| Homebred | 286 |
| Purchased | 243 |
| Vasectomy | |
| Vasectomized | 55 |
| No Vasectomized | 474 |
| Region | |
| Low dairy density (1) | 172 |
| High dairy density (2) | 354 |
| Vaccine IBR | |
| Yes | 454 |
| No | 75 |
| BVD virus status | |
| Positive | 2 |
| Negative | 527 |
| IBR sero status | |
| Positive | 87 |
| Negative | 434 |
