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JOHNE'S INFORMATION CENTER - University of Wisconsin Ñ School of Veterinary Medicine



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Tuesday, October 9, 2018
A model of paratuberculosis control on large dairy farms.

Research article
Konboon et al. published a model of paratuberculosis control in large (>500 cow) dairy farms (PLOS One, October 2, 2018). The model is sophisticated and great care has been taken to insure it reflects how dairy cattle are handled on large dairy farms using information from California dairies to construct the model.
This 25 page report is best suited to experts in paratuberculosis and infectious disease modeling.

Conclusions:
The authors conclude that a combination of test-and-cull programs, based on use of the ELISA technology on serum samples, coupled with more intensive manure management, i.e. hygienic measures to lower the environmental burden of MAP, are the most effective methods for reducing within herd MAP infection prevalence.

Comment: This model does not include economic parameters. Thus, its conclusions are restricted to which methods most effectively decrease the MAP infection rate in large dairy herds – not which methods are most cost-effective. Also, the model assumes that the herds are totally closed, i.e. never purchase replacement heifers, a situation that is not achievable in many herds and could cause re-introduction of MAP-infected animals.

This is an open access article distributed under the terms of the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Below is a link to the journal where this article can be downloaded.

Full article on PLOS-ONE website