Table 6.
Farmers’ data |
Dairy-disease database |
p-Valueb | |||||
---|---|---|---|---|---|---|---|
Herds with events (%) | IP or IR |
Herds with events (%) | IP or IR Percentile |
||||
75 | 90 | 75 | 90 | ||||
Cows; IP | |||||||
Calving problems | 22 | 0 | 5.9 | 10 | 0 | 1.9 | 0.006 |
Peripartum disorders | 20 | 0 | 2.2 | 10 | 0 | 0.8 | 0.015 |
Puerperal paresis | 51 | 7 | 11.1 | 47 | 5.9 | 10 | 0.352 |
Retained placenta | 40 | 4.9 | 9.5 | 20 | 0 | 5.6 | <0.001 |
Cows; IR | |||||||
Abomasal displacement | 15 | 0 | 4.2 | 15 | 0 | 4.2 | 0.99 |
Acetonemia/inappetence | 31 | 5.3 | 10.9 | 22 | 0 | 8.3 | 0.036 |
Clinical mastitis | 91 | 42.1 | 58.6 | 82 | 27.9 | 45.7 | <0.001 |
Cougha | 5 | 0 | 0 | 1 | 0 | 0 | 0.054 |
Gastro-intestinal disordersa | 14 | 0 | 4.5 | 1 | 0 | 0 | <0.001 |
Lameness (hoof) | 39 | 7.2 | 17.2 | 24 | 0 | 8.7 | 0.002 |
Lameness (limb) | 45 | 7.7 | 17.2 | 2 | 0 | 0 | <0.001 |
Laminitis | 5 | 0 | 0 | 5 | 0 | 0 | 1 |
Other disorders | 39 | 5.9 | 10.4 | 41 | 6.1 | 13.9 | 0.641 |
Paresis, not puerperal | 23 | 0 | 7.5 | 13 | 0 | 4.7 | 0.022 |
Ringworm/lice | 5 | 0 | 0 | 0 | 0 | 0 | 0.008 |
Teat tramp | 45 | 10.2 | 17.4 | 18 | 0 | 6.4 | <0.001 |
Traumatic reticuloperitonitis | 8 | 0 | 0 | 5 | 0 | 0 | 0.221 |
Udder disorders | 17 | 0 | 6.9 | 3 | 0 | 0 | <0.001 |
Young stock; IR | |||||||
Cougha | 14 | 0 | 4.1 | 3 | 0 | 0 | 0.001 |
Gastro-intestinal disordersa | 36 | 5.4 | 14.6 | 1 | 0 | 0 | <0.001 |
Lameness (hoof) | 10 | 0 | 1.8 | 7 | 0 | 0 | 0.384 |
Lameness (limb) | 9 | 0 | 0 | 0 | 0 | 0 | – |
Other disorders | 23 | 0 | 6.5 | 10 | 0 | 1.8 | 0.002 |
Ringworm/lice | 5 | 0 | 0 | 0 | 0 | 0 | 0.004 |
Herds with outbreaks of cough (n = 5), diarrhoea (n = 7) and ringworm/lice (n = 4), where a major part of the herd was affected, are not included in the respective estimates.
Difference in herd incidence distribution between farmers’ data and the disease-recording system was tested with the Wilcoxon rank-sum test.