Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis

H.J.W. van Roermund; M.F. Weber; A.A. de Koeijer; A.G.J. Velthuis; M.C.M. de Jong

Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis

H.J.W. van Roermund, M.F. Weber, A.A. de Koeijer, A.G.J. Velthuis, M.C.M. de Jong

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › Academic

Abstract

A bulk milk quality assurance programme for Mycobacterium avium subsp. paratuberculosis (Map) in dairy herds was simulated. Herds were certified as 'low-Map bulk milk' if, with a certain probability, the concentration of Map in bulk milk did not exceed a maximum acceptable concentration (MAC). The MAC was based on pasteurisation studies. The programme starts with an intake procedure; test-negative herds enter a surveillance procedure and test-positive herds enter a control procedure. The aim of this study was to simulate different programmes to evaluate their epidemiological and economic effects in a population of closed Dutch dairy herds.Combinations of various herd examinations for the intake, surveillance and control procedure were simulated with JohneSSim (a stochastic simulation model). For example, intake was done by ELISA, surveillance by biennial ELISA and control by biennial faecal culture. Test-positive animals were culled. All programmes were simulated with and without preventive management measures taken by all participating herds. Sensitivity analyses were performed for uncertain parameters.The results show that herd examinations by ELISA for intake and surveillance effectively ensure the quality of 'low-Map bulk milk': >96% of simulated certified herds (increasing to >99% after 10 years) were below the MAC. Preventive management measures hardly influenced the Map bulk milk concentration of certified herds. However, preventive measures were pivotal to enable herds in the control procedure to move to 'low-Map bulk milk' status. Culling based on biennial faecal culture was more effective than culling based on annual ELISA. Average total discounted costs for 20-year participation in the programme mentioned above were ¿6.103 per average Dutch dairy herd. On average, additional preventive measures increased these costs to ¿40.103 per herd. This study showed that a bulk milk quality assurance programme for closed Dutch dairy herds is feasible and provided decision-makers with information on the cost-effectiveness of different programmes

Original language	English
Title of host publication	Proceedings of the 8th International Congress of Paratuberculosis, Copenhagen, Denmark, 14-17 August 2005
Pages	60-73
Publication status	Published - 2005
Event	8th International Congress of Paratuberculosis - Duration: 14 Aug 2005 → 17 Aug 2005

Conference

Conference	8th International Congress of Paratuberculosis
Period	14/08/05 → 17/08/05

Access to Document

https://edepot.wur.nl/329769

Cite this

van Roermund, H. J. W., Weber, M. F., de Koeijer, A. A., Velthuis, A. G. J., & de Jong, M. C. M. (2005). Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis. In Proceedings of the 8th International Congress of Paratuberculosis, Copenhagen, Denmark, 14-17 August 2005 (pp. 60-73) https://edepot.wur.nl/329769

@inproceedings{a02e3013f52f45e4872d730e426fc16a,

title = "Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis",

abstract = "A bulk milk quality assurance programme for Mycobacterium avium subsp. paratuberculosis (Map) in dairy herds was simulated. Herds were certified as 'low-Map bulk milk' if, with a certain probability, the concentration of Map in bulk milk did not exceed a maximum acceptable concentration (MAC). The MAC was based on pasteurisation studies. The programme starts with an intake procedure; test-negative herds enter a surveillance procedure and test-positive herds enter a control procedure. The aim of this study was to simulate different programmes to evaluate their epidemiological and economic effects in a population of closed Dutch dairy herds.Combinations of various herd examinations for the intake, surveillance and control procedure were simulated with JohneSSim (a stochastic simulation model). For example, intake was done by ELISA, surveillance by biennial ELISA and control by biennial faecal culture. Test-positive animals were culled. All programmes were simulated with and without preventive management measures taken by all participating herds. Sensitivity analyses were performed for uncertain parameters.The results show that herd examinations by ELISA for intake and surveillance effectively ensure the quality of 'low-Map bulk milk': >96% of simulated certified herds (increasing to >99% after 10 years) were below the MAC. Preventive management measures hardly influenced the Map bulk milk concentration of certified herds. However, preventive measures were pivotal to enable herds in the control procedure to move to 'low-Map bulk milk' status. Culling based on biennial faecal culture was more effective than culling based on annual ELISA. Average total discounted costs for 20-year participation in the programme mentioned above were ¿6.103 per average Dutch dairy herd. On average, additional preventive measures increased these costs to ¿40.103 per herd. This study showed that a bulk milk quality assurance programme for closed Dutch dairy herds is feasible and provided decision-makers with information on the cost-effectiveness of different programmes",

author = "{van Roermund}, H.J.W. and M.F. Weber and {de Koeijer}, A.A. and A.G.J. Velthuis and {de Jong}, M.C.M.",

year = "2005",

language = "English",

pages = "60--73",

booktitle = "Proceedings of the 8th International Congress of Paratuberculosis, Copenhagen, Denmark, 14-17 August 2005",

note = "8th International Congress of Paratuberculosis ; Conference date: 14-08-2005 Through 17-08-2005",

}

van Roermund, HJW, Weber, MF, de Koeijer, AA, Velthuis, AGJ & de Jong, MCM 2005, Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis. in Proceedings of the 8th International Congress of Paratuberculosis, Copenhagen, Denmark, 14-17 August 2005. pp. 60-73, 8th International Congress of Paratuberculosis, 14/08/05. <https://edepot.wur.nl/329769>

Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis. / van Roermund, H.J.W.; Weber, M.F.; de Koeijer, A.A. et al.
Proceedings of the 8th International Congress of Paratuberculosis, Copenhagen, Denmark, 14-17 August 2005. 2005. p. 60-73.

Research output: Chapter in Book/Report/Conference proceeding › Conference paper › Academic

TY - GEN

T1 - Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis

AU - van Roermund, H.J.W.

AU - Weber, M.F.

AU - de Koeijer, A.A.

AU - Velthuis, A.G.J.

AU - de Jong, M.C.M.

PY - 2005

Y1 - 2005

N2 - A bulk milk quality assurance programme for Mycobacterium avium subsp. paratuberculosis (Map) in dairy herds was simulated. Herds were certified as 'low-Map bulk milk' if, with a certain probability, the concentration of Map in bulk milk did not exceed a maximum acceptable concentration (MAC). The MAC was based on pasteurisation studies. The programme starts with an intake procedure; test-negative herds enter a surveillance procedure and test-positive herds enter a control procedure. The aim of this study was to simulate different programmes to evaluate their epidemiological and economic effects in a population of closed Dutch dairy herds.Combinations of various herd examinations for the intake, surveillance and control procedure were simulated with JohneSSim (a stochastic simulation model). For example, intake was done by ELISA, surveillance by biennial ELISA and control by biennial faecal culture. Test-positive animals were culled. All programmes were simulated with and without preventive management measures taken by all participating herds. Sensitivity analyses were performed for uncertain parameters.The results show that herd examinations by ELISA for intake and surveillance effectively ensure the quality of 'low-Map bulk milk': >96% of simulated certified herds (increasing to >99% after 10 years) were below the MAC. Preventive management measures hardly influenced the Map bulk milk concentration of certified herds. However, preventive measures were pivotal to enable herds in the control procedure to move to 'low-Map bulk milk' status. Culling based on biennial faecal culture was more effective than culling based on annual ELISA. Average total discounted costs for 20-year participation in the programme mentioned above were ¿6.103 per average Dutch dairy herd. On average, additional preventive measures increased these costs to ¿40.103 per herd. This study showed that a bulk milk quality assurance programme for closed Dutch dairy herds is feasible and provided decision-makers with information on the cost-effectiveness of different programmes

AB - A bulk milk quality assurance programme for Mycobacterium avium subsp. paratuberculosis (Map) in dairy herds was simulated. Herds were certified as 'low-Map bulk milk' if, with a certain probability, the concentration of Map in bulk milk did not exceed a maximum acceptable concentration (MAC). The MAC was based on pasteurisation studies. The programme starts with an intake procedure; test-negative herds enter a surveillance procedure and test-positive herds enter a control procedure. The aim of this study was to simulate different programmes to evaluate their epidemiological and economic effects in a population of closed Dutch dairy herds.Combinations of various herd examinations for the intake, surveillance and control procedure were simulated with JohneSSim (a stochastic simulation model). For example, intake was done by ELISA, surveillance by biennial ELISA and control by biennial faecal culture. Test-positive animals were culled. All programmes were simulated with and without preventive management measures taken by all participating herds. Sensitivity analyses were performed for uncertain parameters.The results show that herd examinations by ELISA for intake and surveillance effectively ensure the quality of 'low-Map bulk milk': >96% of simulated certified herds (increasing to >99% after 10 years) were below the MAC. Preventive management measures hardly influenced the Map bulk milk concentration of certified herds. However, preventive measures were pivotal to enable herds in the control procedure to move to 'low-Map bulk milk' status. Culling based on biennial faecal culture was more effective than culling based on annual ELISA. Average total discounted costs for 20-year participation in the programme mentioned above were ¿6.103 per average Dutch dairy herd. On average, additional preventive measures increased these costs to ¿40.103 per herd. This study showed that a bulk milk quality assurance programme for closed Dutch dairy herds is feasible and provided decision-makers with information on the cost-effectiveness of different programmes

M3 - Conference paper

SP - 60

EP - 73

BT - Proceedings of the 8th International Congress of Paratuberculosis, Copenhagen, Denmark, 14-17 August 2005

T2 - 8th International Congress of Paratuberculosis

Y2 - 14 August 2005 through 17 August 2005

ER -

Development of a milk quality assurance program for paratuberculosis: from within- and between herd dynamics to economic decision analysis

Abstract

Conference

Access to Document

Fingerprint

Cite this