Cross-Sectional Study of Seroprevalence and Associated Risk Factors of Bovine Brucellosis in Selected Districts of Jimma Zone, South Western Oromia, Ethiopia
Table 5
Influence of management risk factors on seroprevalence of bovine brucellosis.
Risk factor
Category
(+ve)
Prevalence (%)
Univariable analysis
Multivariable analysis
value
AOR (95% CI)
value
Management systems
Intensive
14 (0)
0
4.256
0.119
Extensive
90 (14)
15.6
Semi-intensive
10 (0)
0
Herd size
Small
44 (6)
13.6
4.012
0.135
Medium
48 (8)
16.7
Large
22 (0)
0
Frequent contact with other herds
Yes
98 (14)
14.3
2.606
0.016
No
16 (0)
0
Feeding style
Separate (ref)
60 (2)
3.3
9.413
0.002
Mixed
54 (12)
22.2
8.3(1.76-38.99)
0.007
Source of replacement stock
Market
39 (8)
20.5
4.843
0.089
Own
15 (0)
0
Both
60 (6)
0.1
Type of service
AI
42 (3)
7.1
0.306
0.858
Bull
6 (0)
0
Both
66 (8)
12.1
Types of the housing system
Loose
15 (1)
6.7
0.505
0.477
Tying
99 (13)
13.1
Sources of water
Underground
13 (2)
15.4
5.876
0.209
Surface
13 (3)
23.1
Both
40 (5)
12.5
Tap water
26 (0)
0
Any available
22 (4)
18.2
Separate parturition pen
Yes
7 (0)
0
0.732
0.392
No
105 (14)
13.3
AI: artificial insemination; AOR: adjusted odds ratio; : chi square; CI: confidence interval; : number of observation.
