Table 2. Predictive features.
| Cow related features | Herd related features |
|---|---|
| Low milk production cull (LowMilkCull) | Milking herd size (HerdSize) |
| Reproduction cull (ReproCull) | Milk production level (RollingHerdAvg) |
| Lameness cull (LameCull) | Holstein Breed (Holstein) |
| Mastitis cull (MastitisCull) | Jersey Breed (Jersey) |
| Other reasons cull (OtherCull) | Percent culled monthly (CullPctMonth) |
| Antimicrobial Drug Use for cull condition (AMD) | Times culled monthly (CullTimesMonth) |
| Anti-inflammatory treatment for condition (Ani-Inf) | Main cull reason disease |
| No-Treatment for condition (No-Treatment) | Percent culled sold for beef (PctCullBeef) |
| Other treatment for condition (Other) | Percent carcasses condemned (PctCullCondemned) |
| Percent culled injected within 2~3 weeks (PctInject) | |
| Veterinarian gives sick cow treatments (VetTreats) | |
| Dairy manager gives sick cow treatments (ManagerTreats) | |
| Staff gives sick cow treatments (StaffTreats) | |
| Prevent Residue by avoiding specific drugs (ResiduePrevent) | |
| Chalk on cows to track drug withdrawal (Chalk4Withdrawal) | |
| Keep drug inventory (Inventory) | |
| Penicillin | |
| Ceftiofur | |
| Tetracycline | |
| Antibiotics used separately (SeparateUse) | |
| Antibiotics combinations used (CombinationUse) | |
| Track antibiotic dose used (TrackAntibioticDose) | |
| Track antibiotic route used (TrackAntibioticRoute) | |
| Familiarity with ELDU (FamiliarELDU) | |
| Frequency of ELDU (FreqELDU) | |
| No ELDU (NoELDU) | |
| Number of cull cows culled today (NumberCulled) | |
| Use of Salmonella vaccine (SalmonellaVaccine) | |
| Sampling Season |
Note:
Dairy cattle and herd related features used as predictors in classification models.