Table 5 Estimated effects of different factors on cow composite milk SCC (somatic cell count) in Finland
Factor | 1991 | 2001 | 2010 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
99.9% CI | 99.9% CI | 99.9% CI | 99.9% CI | |||||||||
Estimate | Lower | Upper | Estimate | Lower | Upper | Estimate | Lower | Upper | Estimate | Lower | Upper | |
Year | 72.4 | 61.1 | 85.8 | 82.1 | 81.1 | 83.1 | 74.7 | 73.7 | 75.8 | |||
Number of parity | ||||||||||||
1 | 53.1 | 50.1 | 56.2 | 46.1 | 38.9 | 54.7 | 53.3 | 52.5 | 54.1 | 73.8 | 72.9 | 74.7 |
2 | 66.4 | 62.7 | 70.3 | 61.2 | 51.7 | 72.6 | 64.8 | 63.9 | 65.7 | 93.0 | 91.8 | 94.2 |
3 | 88.3 | 83.4 | 93.5 | 86.4 | 72.8 | 102.4 | 85.6 | 84.3 | 86.9 | 112.6 | 95.0 | 133.6 |
≥4 | 108.9 | 102.9 | 115.3 | 60.9 | 60.1 | 61.7 | 108.9 | 107.5 | 110.4 | 105.3 | 103.8 | 106.9 |
Breed | ||||||||||||
Ayrshire | 69.3 | 65.4 | 73.3 | 63.8 | 53.8 | 75.6 | 76.1 | 75.3 | 76.8 | 68.5 | 67.7 | 69.3 |
Holstein | 86.0 | 81.2 | 91.0 | 82.5 | 69.6 | 97.8 | 91.8 | 90.9 | 92.8 | 83.9 | 82.8 | 84.9 |
Other breeds | 74.6 | 70.3 | 79.2 | 72.2 | 60.7 | 85.8 | 79.3 | 77.2 | 81.4 | 72.6 | 70.6 | 74.6 |
Type of production | ||||||||||||
Organic production | 74.2 | 66.2 | 83.1 | 61.3 | 43.6 | 86.0 | 87.1 | 85.3 | 88.8 | 76.4 | 74.7 | 78.3 |
Conventional production | 78.5 | 78.0 | 79.0 | 85.6 | 84.3 | 86.8 | 77.5 | 76.8 | 78.1 | 73.0 | 72.4 | 73.7 |
Region | ||||||||||||
East | 72.6 | 68.5 | 76.8 | 67.0 | 56.5 | 79.4 | 79.7 | 78.7 | 80.8 | 71.6 | 70.5 | 72.6 |
North | 72.3 | 68.3 | 76.5 | 72.2 | 60.9 | 85.6 | 75.0 | 74.0 | 76.0 | 69.8 | 68.8 | 70.8 |
South | 78.9 | 74.5 | 83.6 | 73.9 | 62.4 | 87.7 | 85.8 | 84.6 | 87.0 | 77.4 | 76.2 | 78.6 |
West | 81.9 | 77.3 | 86.7 | 76.9 | 64.8 | 91.1 | 88.6 | 87.5 | 89.8 | 80.5 | 79.4 | 81.7 |