Table 5.

Sensitivity of suckler herd results in Table 4 to 10% increase in the estimating model’s parameter settings

Parameter	New setting*	Percent change in costs/cow/year
Epidemiological parameters:
Prevalence of antibody positive herds	0.825	0.6
Prevalence of herds with one or more PI	0.275	7.4
Risk of virus entry into a herd in any one year	0.209	7.8
Proportion of heifers that become transient infected if naïve herd infected	0.825	1.3
Proportion of cows that become transient infected if naïve herd infected	0.825	5.1
Financial parameters:
Sale value of normal male calf (€)	495	5.5
Sale value of normal female calf (€)	436	5.2
Costs of immunosuppression effects (€/calf at risk)	3.4	1.4
Opportunity cost of farm labour (€/hour)	9.11	5.6
Replacement heifer cost (€)	1,121	7.5
Value of cull cow (€)	872	−1.0
Veterinary charges (€/hour or visit)	69	2.8
Other minor cost assumptions converted from £ to €	1.24	0.0

*See Table 1 for original parameter settings.