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dc.contributor.authorVillaamil, Francisco Javier
dc.contributor.authorYus Respaldiza, Eduardo Alfonso
dc.contributor.authorBenavides, Bibiana
dc.contributor.authorAllepuz, Alberto
dc.contributor.authorMoya, Sebastián J.
dc.contributor.authorCasal, Jordi M.
dc.contributor.authorOrtega, Carmelo
dc.contributor.authorDiéguez Casalta, Francisco Javier
dc.date.accessioned2021-02-16T11:06:01Z
dc.date.available2021-02-16T11:06:01Z
dc.date.issued2021
dc.identifier.citationAnimals 2021, 11(1), 166; https://doi.org/10.3390/ani11010166
dc.identifier.urihttp://hdl.handle.net/10347/24475
dc.description.abstractThis study aimed at quantifying expert opinions on the risk factors involved in Mycobacterium avium subsp. paratuberculosis (MAP) infection in dairy cattle herds. For this purpose, potential risk factors associated with the introduction of MAP into dairies were chosen based on a literature review and discussions with researchers and veterinarians. For each factor, a decision tree was developed, and key questions were included in each. Answers to these key questions led to different events within each decision tree. An expert opinion workshop was organized (following the recommendations of the OIE), and ordinal values ranging from 0 to 9 (i.e., a null to very high likelihood of infection) were assigned to each event. The potential risk factors were also incorporated into a structured questionnaire that was responded to by 93 farms where the sanitary status against MAP was known. Thereby, based on the values given by the experts and the information collected in the questionnaires, each farm was assigned a score based on their MAP entry risk. From these scores (contrast variable) and using a ROC curve, the cut-off that best discriminated MAP-positive and -negative farms was estimated. The most important risk factors for the introduction of MAP, according to expert opinions, involved purchase and grazing practices related to animals under six months of age. The scores obtained for each farm, also based on the expert opinions, allowed MAP positive/MAP negative farms to be discriminated with 68.8% sensitivity and 68.7% specificity. These data should be useful for focusing future training initiatives and improving risk-reduction strategies in the dairy industry
dc.description.sponsorshipThis research was supported by a project from the Ministry of Science and Innovation of Spain (AGL2016-77269-C2-2-R)
dc.language.isoeng
dc.publisherMDPI
dc.rights© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)
dc.rightsAtribución 4.0 Internacional
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDairy cattle
dc.subjectExpert opinion
dc.subjectJohne’s disease
dc.subjectRisk analysis
dc.subjectSpain
dc.titleFactors Associated with the Introduction of Mycobacterium avium spp. Paratuberculosis (MAP) into Dairy Herds in Galicia (North-West Spain): The Perception of Experts
dc.typejournal article
dc.identifier.doi10.3390/ani11010166
dc.relation.publisherversionhttps://doi.org/10.3390/ani11010166
dc.type.hasVersionAO
dc.identifier.essn2076-2615
dc.rights.accessRightsopen access
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Anatomía, Produción Animal e Ciencias Clínicas Veterinarias
dc.contributor.affiliationUniversidade de Santiago de Compostela. Departamento de Patoloxía Animal
dc.description.peerreviewedSI


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© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)
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 © 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/)





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