Table 3.
Calf and herd-level prevalence (%) of respiratory disease, diarrhea, and other health problems on 29 dairy farms using group pens in Los Ríos region, Chile.
| Health Event | Calf-Level Prevalence | Herd-Level Prevalence | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Total Calves Assessed | Cases | Overall 1 (%) | Mean Herd Prevalence 2 (%) | Min | 1st Quartile | Mean | 3rd Quartile | Max | |
| Respiratory disease | 700 | 109 | 15.5 | 17.7 | 0 | 10.0 | 14.3 | 21.4 | 75.0 |
| Diarrhea | 686 | 94 | 13.7 | 12.7 | 0 | 3.3 | 6.7 | 21.7 | 41.7 |
| Other health problems 3 | 700 | 104 | 14.9 | 15.3 | 0 | 2.9 | 12.5 | 21.7 | 75.0 |
| Sick 4 | 700 | 260 | 37.2 | 38.1 | 3.1 | 26.7 | 35.7 | 47.8 | 83.3 |
1 Overall (%) = n calves with a health problem/n calves examined. 2 Mean herd prevalence (%) = n calves with a health problem/n calves examined. Divided into mean herd prevalence, minimum, 1st quartile, mean, 3rd quartile, and maximum. 3 Other health problems—lameness, skin lesions, blindness, umbilical hernia, lumpy jaw, and evidently ill animals. 4 Sick—percentage of calves with at least one health problem (respiratory disease, diarrhea, and other health problems).