Table 1 Explanatory variables* among 304 Danish sows with shoulder ulcers
Variable | Levels | Mats (M) Number (%) | Antibiotic (A) Number (%) | Total** |
|---|---|---|---|---|
Parity | Young (1–6) | 138 (60.4) | 136 (49.6) | |
Old (7–14) | 15 (50.0) | 15 (50.0) | 304 | |
Body condition | Lean | 98 (53.3) | 86 (46.7) | |
Fat | 54 (46.2) | 63 (53.9) | 301 | |
Side | Left | 38 (41.8) | 53 (58.2) | |
Right | 113 (54.3) | 95 (45.7) | 299 | |
Herd | 1 | 47 (50.5) | 46 (49.5) | |
2 | 53 (49.5) | 54 (50.5) | ||
3 | 53 (51.0) | 51 (49.0) | 304 |