Table 6 Association between degree of hygiene of cow accommodation and bulk tank total bacterial score (TBS)

Cleanliness of loafing area

Clean

43

9.87 (19)

0.033

0.0023

Slightly dirty

43

9.97 (21)

0.033

Dirty

14

10.09 (24)

0.55

Condition of cubicle shed

Very good

9

9.95 (21)

0.071

<0.001

Good

85

9.91 (20)

0.023

Poor

6

10.33 (31)

0.088

Cleanliness of cubicles

Clean

56

9.87 (19)

0.028

<0.001

Slightly dirty

35

9.98 (22)

0.036

Dirty

9

10.21 (27)

0.072

Cow cleanliness score (0 clean to 120 dirty)

<40

19

9.86 (19)

0.050

0.0603

<60

65

9.95 (21)

0.027

>59

16

10.04 (23)

0.054