Table 5

Estimated utility values for each level of udder health programme attributes under both dairy production contexts

ContextAttributeLevels of attributeUtility (part-worth)SEP value
Dry-lot systemCost (£/day)22−0.8290.106<0.001
29−1.6570.212
36−2.4860.318
Efficacy in reducing BMSCC (cells/ml x 1000)<300−1.6390.184<0.001
300–500−3.2780.368
Efficacy in reducing CM level (%)<5−1.5190.106<0.001
5–10−3.0370.212
>10−4.5560.318
Technical support (£/day)20.0740.1060.490
40.1480.212
110.2220.318
(Constant)11.7310.45
Dry-lot with pasture accessCost (£/day)22−1.0740.071<0.001
29−2.1480.142
36−3.2220.213
Efficacy in reducing BMSCC (cells/ml x 1000)<300−1.9720.123<0.001
300–500−3.9440.246
Efficacy in reducing CM level (%)<5−1.4770.071<0.001
5–10−2.9540.142
>10−4.4310.213
Technical support (£/day)2−0.2780.071<0.001
4−0.5560.142
11−0.8330.213
(Constant)13.2870.302
  • BMSCC, bulk milk somatic cell count; CM, clinical mastitis.