Multivariate model | ||||
---|---|---|---|---|
Variable | Description | β Coefficient | Standard error | P-value |
Intercept | -0.045 | 0.008 | < .001 | |
Production | Conventional | -0.003 | 0.004 | 0.400 |
Organic | 0 | - | - | |
Herd size | < 100 | 0.010 | 0.007 | 0.175 |
100 to 200 | 0.003 | 0.008 | 0.734 | |
> 200 | 0 | - | - | |
State | NY | 0.003 | 0.004 | 0.463 |
OR | 0.013 | 0.007 | 0.069 | |
WI | 0 | - | - | |
Johne’s procedures | Cull after calving or dry off | 0.020 | 0.009 | 0.025 |
Cull immediately | 0.010 | 0.005 | 0.035 | |
Keep | 0.018 | 0.007 | 0.019 | |
Never observed clinical Johne’s disease | 0 | - | - | |
Seasonality |
| -0.030 | 0.003 | < .001 |