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. 2013 Jun 1;110(2):88–102. doi: 10.1016/j.prevetmed.2013.02.010

Table 5.

Results from the partial budget analyses. Mean values from the stochastic model are shown. Where: H-S are healthy pigs with normal growth; PMWS-D are PMWS pigs that die due to the disease; PMWS-R are PMWS pigs that recover from the disease; Sub-D are PCV2 infected pigs with slow growth, no clear PMWS clinical sign and that die; and Sub-S are PCV2 infected pigs with slow growth, no clear PMWS clinical sign and that survives.

Value (£)
PMWS-D PMWS-R Sub-D Sub-S
Extra cost Extra pig feeda 0 −4.06 0 −3.31
Extra Vet&Med costsb −4.37 −5.95 0 −0.37
Extra electricityb 0 −0.52 0 −0.42
Extra waterb 0 −0.15 0 −0.12
Extra straw & beddingb 0 −0.10 0 −0.09
Extra levy, insurance, inspection costsb 0 0 0 0
Carcass disposalb −6 0 −6 0
Revenue forgone Deadweight not sold −108.39 0 −108.39 0
Loss in carcass qualityc 0 −9.10 0 0
Profit lost due to miss-used spaced 0 −4.58 0 −3.66



Total extra costs −112.76 −24.34 −114.39 −13.86



Costs saved Pig feed saveda 30.47 0 26.66 0
Vet&Med costs savedb 0 0 1.00 0
Electricity savedb 1.27 0 1.14 0
Water savedb 0.36 0 0.32 0
Straw & bedding savedb 0.26 0 0.23 0
Extra levy, insurance, inspection costs savedb 2.90 0 2.90 0
Transport savedb 2.34 0 2.34 0
Extra revenue None − − − −



Total benefits 37.60 0 32.43 0
Net totale −84.06 −24.55 −82.69 −8.11
a

Differences in feed consumed, compared to a H-S pig, were multiplied by FPG.

b

Difference in cost compared to a H-S pig.

c

Carcass weight of a PMWS-R pig at slaughter was multiplied by PC (see Table 4).

d

Calculated only for PMWS-R and Sub-S pigs because of their extra days in feed on the farm. The space they occupied could have been used to improve the productivity of the farm. To account for this loss of potential, the profits obtained for each H-S pig produced in 140 days was extrapolated to the extra days in feed that these disease pigs remained on the farm.

e

Net margin values in this table correspond to the mean values obtained after the stochastic model. Therefore, the values will not correspond to the exact calculations from the above values.