Variable | Category | No of farms (%) | p-value | |||
---|---|---|---|---|---|---|
log10 TBC | log10 CC | log10 CPS | Occurrence of S. aureus | |||
Barn cleanliness | Clean | 20 (40) | 0.000 | 0.035 | – | 0.003 |
Dirty | 30 (60) | Â | Â | Â | Â | |
Cow cleanliness | Clean | 20 (40) | 0.000 | 0.035 | – | 0.003 |
Dirty | 30 (60) | Â | Â | Â | Â | |
Udder cleanliness | Clean | 21 (42) | 0.000 | 0.044 | – | 0.002 |
Dirty | 29 (58) | Â | Â | Â | Â | |
Season | Dry | 30 (60) | 0.027 | – | – | – |
Wet | 20 (40) | Â | Â | Â | Â | |
Sex of milker | Male | 23 (46) | – | – | – | 0.043 |
Female | 27 (54) | Â | Â | Â | Â | |
Production system | Urban | 36 (72) | – | 0.007 | – | – |
Peri-urban | 14 (28) | Â | Â | Â | Â | |
Water for teat and hand washing | Cold | 28 (56) | – | 0.000 | 0.027 | – |
Warm | 22 (44) | Â | Â | Â | Â |