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Table 4 Factors associated with the winter housing on 398 Irish dairy 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
Cubicle bedding Sawdust and other 11 12.40 (244) 0.049 ***
  Shredded paper 4 12.37 (236) 0.082  
  Straw 4 12.55 (283) 0.076  
  Lime 17 12.62 (301) 0.038  
  Mats and lime 34 12.40 (242) 0.027  
  Mats 19 12.51 (271) 0.035  
  None 11 12.61 (301) 0.049  
Cubicles Cleaned Twice a day 37 12.43 (250) 0.027 **
  Once a day 46 12.49 (265) 0.023  
  Every second day 7 12.65 (313) 0.063  
  Weekly 5 12.60 (297) 0.073  
  Never 5 12.61 (299) 0.070  
How is the Passage cleaned? Mechanical scrapers 55 12.46 (257) 0.022 ***
  Tractor 23 12.59 (294) 0.033  
  Hand scraper 6 12.57 (288) 0.069  
  Slats 11 12.49 (265) 0.050  
  Mixture 5 12.31 (221) 0.068  
How often is the passage cleaned? Twice a day 16 12.51 (271) 0.043 ***
  Once a day 24 12.61 (301) 0.035  
  Every 1/2 hrs 11 12.44 (253) 0.051  
  Every 3/4 hrs 32 12.39 (240) 0.030  
  Every 5/7 hrs 12 12.49 (267) 0.048  
  Twice a week 4 12.62 (303) 0.088  
  Never 1 12.69 (324) 0.176  
Calving area Calving box 85 12.48 (264) 0.018 ns
  Cubicles house 4 12.55 (283) 0.084  
  Paddock 4 12.60 (307) 0.084  
  Stalls 3 12.53 (269) 0.091  
  Other 4 12.45 (256) 0.076  
How often is the calvingarea cleaned? Daily 23 12.43 (251) 0.034 ***
  Twice a week 17 12.63 (305) 0.039  
  Weekly 11 12.38 (237) 0.047  
  Three times a season 15 12.45 (256) 0.041  
  Twice a season 24 12.48 (264) 0.032  
  End of season 10 12.53 (276) 0.050  
  1. ns (not significant), * P < 0.05, **P < 0.01, ***P < 0.001
  2. Somatic cell count (SCC), somatic cell score (SCS)