Table 2.
General data of 484 horses from 48 farms included in the study
| Parameter | Value |
|---|---|
| Age (years; median range) | 12.0 (0.8–34.0) |
| Mares (%) | 50.2 |
| Geldings (%) | 46.7 |
| Stallions (%) | 3.1 |
| Faecal samples (%) | 100 |
| Saliva samples (%) | 75.4 |
| Serum samples (%) | 99.4 |
| Last treatment | |
| Ivermectin + Praziquantel (%) | 7.2 |
| Ivermectin (%) | 42.4 |
| Moxidectin (%) | 4.1 |
| Doramectin (%) | 1.4 |
| Fenbendazole (%) | 4.3 |
| Pyrantel (%) | 38.2 |
| Unknown | 2.3 |
| Period between last anthelmintic treatment and sampling (weeks; median range) | 14.4 (1.4–100.0) |
| Horses sampled per farm (number; median, range) | 10 (4–17) |
| Pasture access (%) | 96.7 |
| Unlimited (%) | 28.9 |
| Limited (%) | 67.8 |
| Pasture area/horse (ha) (mean, range) | 0.6 (0.1–2.0) |
| Size/number of horses per farm (mean, range) | 40.2 (6–110) |
| Foals present (%) | 39.6 |
| Treatment schedule (annual) | |
| Selective (%) | 8.7 |
| Low number (1–2) of treatments (%) | 32.8 |
| Moderate number (3) of treatments (%) | 39.6 |
| High number (≥4) treatments (%) | 18.9 |