Table 4.
Top 10 diagnoses recorded for antimicrobial drug treatment from January 1 to June 30, 2002 summarized at the individual calfa and herdb levelc.
| Diagnosis | Percent (number) of calves affected | Percent (number) of herds with at least one animal affectedd |
|---|---|---|
| Diarrhea | 5.8 (1648) | 64 (129) |
| Pneumonia | 2.2 (625) | 51 (103) |
| Prophylactic treatment for navel infections | 1.9 (529) | 2.0 (4) |
| Not recorded | 1.2 (355) | 33 (67) |
| Omphalitis | 1.1 (300) | 43 (87) |
| Fever, depression, not doing well | 0.5 (139) | 22 (44) |
| Coccidiosis | 0.4 (114) | 17 (35) |
| Prophylactic treatment at castration | 0.2 (45) | 1.5 (3) |
| Weak | 0.1 (25) | 6.9 (14) |
| Interdigital necrobacillosis | 0.1 (27) | 9.9 (20) |
a
Total number of calves enrolled, n = 28,573.
b
Total number of herds enrolled, N = 203.
c
Individual calves may have more than one diagnoses.
d
Corresponds to the percent (number) of herds with at least one case of the diagnosis.