Table 3

Comparison of costs for the annual serological survey to substantiate freedom from IBR and EBL using conventional stratified random sampling (sRS) and combined targeted and baseline stratified random sampling (cTS&bsRS) (figures based on data by S. Menéndez, Swiss Federal Veterinary Office (2008), exchange ratio CHF/€ = 1.5)

Number of herds

to be tested

Number of individual

blood samples

Costs for the planning of the survey

Costs for sampling and

laboratory analysis

Total costs for the full survey5


IBR


sRS

2,259

45,1801

8,700 €

912,000 €

964,800 €

cTS&bsRS

1,241

25,6502

11,800 €3

524,500 €

580,600 €


EBL


sRS

2,243

44,8601

8,700 €

903,100 €

955,900 €

cTS&bsRS

1,750

41,1602

11,800 €3

824,000 €

880,100 €


1 The average number of animals to be tested (eq. individual samples) per farm was set at 20 for randomly selected farms.

2 The average number of animals to be tested (eq. individual samples) per farm was set at 30 for farms selected targeted and at 20 for farms selected randomly (baseline sample).

3Additional administrative expenses for updating of "risk farms".

4 The costs include farm visits, sampling labour and material, shipment/postage expenses and laboratory costs.

5 The costs for the evaluation and reporting of the survey results do not differ between the two methods and are therefore not mentioned separately in the table, but are included in the total costs of the survey.

Blickenstorfer et al. BMC Veterinary Research 2011 7:49   doi:10.1186/1746-6148-7-49

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