Table 3 Factors associated with herd farms, and associations with bulk tank SCS (back transformed SCC*103/ml in parentheses) after controlling for region
From: Farm management factors associated with bulk tank somatic cell count in Irish dairy herds
Variable | Level | % | SCS (SCC) | SE | P |
|---|---|---|---|---|---|
Is milk recording practiced? | Yes | 49 | 12.46 (259) | 0.022 | *** |
| Â | No | 51 | 12.58 (292) | 0.022 | Â |
Mastitis cows milked? | At start | 3 | 12.63 (305) | 0.098 | ns |
| Â | At end | 28 | 12.54 (280) | 0.030 | Â |
| Â | Anywhere in herd | 69 | 12.52 (273) | 0.019 | Â |
Dry cow therapy applied? | Never and selected cows | 4 | 12.74 (342) | 0.083 | ** |
| Â | All cows | 96 | 12.52 (273) | 0.016 | Â |
Gloves worn during milking? | Yes | 37 | 12.49 (266) | 0.026 | ns |
| Â | No | 63 | 12.54 (281) | 0.020 | Â |
Tail management (tail hair clipping) | Cut > once a year | 48 | 12.51 (270) | 0.023 | ns |
|  | Cut ≤once a year | 39 | 12.55 (283) | 0.025 |  |
| Â | Ringed | 13 | 12.51 (271) | 0.043 | Â |