Variable | Number | No. pos | Prevalence (%) | p |
---|---|---|---|---|
Management type | Ā | Ā | Ā | <0.001 |
āSemi-intensive | 200 | 92 | 46.0 | Ā |
āIntensive | 329 | 239 | 72.6 | Ā |
Herd size | Ā | Ā | Ā | <0.001 |
āāā¤ā10 | 200 | 92 | 46.0 | Ā |
āā>ā10 | 329 | 239 | 72.6 | Ā |
Bedding material | Ā | Ā | Ā | <0.001 |
āYes | 145 | 61 | 42.1 | Ā |
āNo | 384 | 270 | 70.3 | Ā |
Udder washing | Ā | Ā | Ā | 0.707 |
āWhole udder | 291 | 180 | 61.9 | Ā |
āTeats only | 238 | 151 | 63.5 | Ā |
Udder drying after washing | Ā | Ā | Ā | 0.774 |
āYes | 295 | 183 | 62.0 | Ā |
āNo | 234 | 148 | 63.3 | Ā |
Milking mastitic cow last | Ā | Ā | Ā | 0.001 |
āYes | 202 | 109 | 54.0 | Ā |
āNo | 327 | 222 | 67.9 | Ā |
Breed | Ā | Ā | Ā | <0.001 |
āLocal | 83 | 33 | 39.8 | Ā |
āCross | 446 | 298 | 66.8 | Ā |
Age | Ā | Ā | Ā | <0.001 |
āāā¤ā5Ā years | 227 | 85 | 37.4 | Ā |
āā>ā5Ā years | 302 | 246 | 81.5 | Ā |
Parity | Ā | Ā | Ā | <0.001 |
ā1 | 66 | 17 | 25.8 | Ā |
ā2 | 145 | 60 | 41.4 | Ā |
ā3 | 115 | 75 | 65.2 | Ā |
āāā„ā4 | 203 | 179 | 88.2 | Ā |
Stage of lactation | Ā | Ā | Ā | <0.001 |
ā1 ā 2 months | 198 | 158 | 79.8 | Ā |
ā3 ā 6 months | 186 | 80 | 43.0 | Ā |
āāā„ā7 months | 145 | 93 | 64.1 | Ā |
Udder & leg hygiene score | Ā | Ā | Ā | <0.001 |
āSlightly dirty | 241 | 120 | 49.8 | Ā |
āModerately dirty | 203 | 136 | 67.0 | Ā |
āVery dirty | 85 | 75 | 88.2 | Ā |
Udder position | Ā | Ā | Ā | <0.001 |
āNormal | 315 | 162 | 51.4 | Ā |
āPendulous | 214 | 169 | 79.0 | Ā |
Teat end shape | Ā | Ā | Ā | <0.001 |
āPointed | 175 | 74 | 42.3 | Ā |
āRound | 197 | 126 | 64.0 | Ā |
āFlat | 157 | 131 | 83.4 | Ā |
History of mastitis | Ā | Ā | Ā | 0.174 |
āNo | 189 | 111 | 58.7 | Ā |
āYes | 340 | 220 | 64.7 | Ā |