Table 9 Factors associated with bulk tank somatic cell score on 398 Irish dairy farms during summer and winter, based on a multiple regression model

Cubicle bedding of cows

Sawdust and other

12.51 (270)

0.062

***

Shredded paper

12.47 (260)

0.082

Straw

12.57 (288)

0.086

Lime

12.71 (330)

0.057

Mats

12.62 (303)

0.054

Mats and lime

12.55 (282)

0.048

None

12.71 (331)

0.060

The pipeline system

Direct pipeline

12.65 (313)

0.044

***

Recorder plant

12.53 (276)

0.049

Heated water in the pit

Yes

12.54 (280)

0.047

**

No

12.64 (308)

0.045

Use of dry cow therapy

Never

12.72 (335)

0.082

**

All cows

12.46 (258)

0.025

Cleanliness of the parlour

Clean

12.56 (284)

0.048

*

Slightly dirty

12.64 (310)

0.048

Dirty

12.57 (288)

0.061