Table 6.
Seroprevalence of brucellosis in flock size and sex of the animals in relation to production system.
| Small holders farms | Breeding ranches | |||||||
|---|---|---|---|---|---|---|---|---|
| Number of tested | Positive (%) | X 2 (P) | 95% CI | Number of tested | Positive (%) | X 2 (P) | 95% CI | |
| Sex | ||||||||
| Male | 828 | 25 (3.01) | 2.41-4.34 | 105 | 1 (0.95) | 0.42-3.83 | ||
| Female | 1010 | 83 (8.21) | 5.2-11.8 | 466 | 9 (1.93) | 1.01-4.63 | ||
| Total | 1838 | 108 (5.87) | 24.1 (0.00) | 4.64-7.55 | 571 | 10 (1.75) | 11.45 (0.16) | 0.86-4.03 |
| Flock size | ||||||||
| 1-10 | 149 | 15 (10) | 6.71-14.1 | - | - | - | ||
| 11-20 | 61 | 17 (27.86) | 21.8-30.3 | - | - | - | ||
| >20 | 56 | 21 (37) | 31-44.53 | 8 | 8 (100) | - | ||
| Total | 266 | 53 (19.92) | 27.45 (0.000) | 15.4-24.3 | 8 | 8 (100) | 18.23 (0.045) | - |