Table 7.
Distribution of calves (in percent) according to result of coprological analyses
| Pathogenic agents | Coprological analyses | Suckling calves (%) |
Dairy calves (%) |
||||||
| D0a (n = 311) | D3 (n = 153) | D7 (n = 153) | D14 (n = 153) | D0b (n = 382) | D3 (n = 191) | D7 (n = 191) | D14 (n = 191) | ||
| Cryptosporidia | Score 0 | 49.8 | 15.7 | 13.7 | 71.9 | 83.2 | 77.0 | 48.2 | 68.1 |
| Score 1 | 9.6 | 9.2 | 7.8 | 7.8 | 4.5 | 2.1 | 12.6 | 10.9 | |
| Score 2 | 10.6 | 6.5 | 12.4 | 2.6 | 3.9 | 4.2 | 12.0 | 8.4 | |
| Score 3 | 54.7 | 9.8 | 7.2 | 1.3 | 0.8 | 1.6 | 4.7 | 3.7 | |
| Score 4 | 6.1 | 13.1 | 9.8 | 1.3 | 1.8 | 4.7 | 7.8 | 3.7 | |
| Score 5 | 18.3 | 45.8 | 49.0 | 15.0 | 5.8 | 10.5 | 14.7 | 5.2 | |
| E. coli K99 | Absence | 93.9 | ND | 98.5 | 98.3 | 94.2 | ND | 98.4 | 95.3 |
| Presence | 6.1 | ND | 1.5 | 1.7 | 5.8 | ND | 1.6 | 4.7 | |
| Rotavirus | Absence | 85.7 | ND | 88.8 | 87.2 | 90.1 | ND | 72.8 | 87.4 |
| Presence | 14.3 | ND | 11.2 | 12.8 | 9.9 | ND | 27.2 | 12.6 | |
| Coronavirus | Absence | 93.2 | ND | 98.5 | 100 | 68.4 | ND | 64.4 | 69.5 |
| Presence | 6.8 | ND | 1.5 | 0 | 31.6 | ND | 35.6 | 30.5 | |
| Salmonella | Absence | 99.7 | ND | 100 | 100 | 95.3 | ND | 98.9 | 96.8 |
| Presence | 0.3 | ND | 0 | 0 | 4.7 | ND | 1.1 | 31.6 | |
| Agents other than cryptosporidia | Absence | 81 | ND | 88.9 | 90.2 | 58.6 | ND | 48.7 | 54.5 |
| Presence (≥1) | 19 | ND | 11.1 | 9.8 | 41.4 | ND | 51.3 | 45.5 | |
a
D0: Inclusion day, 311 calves 4 to 10 days old.
b
D0: Inclusion day, 382 calves 8 to 15 days old.