Factors Associated with the Introduction of Mycobacterium avium spp. Paratuberculosis (MAP) into Dairy Herds in Galicia (North-West Spain): The Perception of Experts
| العنوان: | Factors Associated with the Introduction of Mycobacterium avium spp. Paratuberculosis (MAP) into Dairy Herds in Galicia (North-West Spain): The Perception of Experts |
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| المؤلفون: | Jordi Casal, Francisco Javier Villaamil, Alberto Allepuz, Sebastián Moya, Carmelo Ortega, Bibiana Benavides Benavides, Francisco Javier Diéguez, E. Yus |
| المساهمون: | Universidade de Santiago de Compostela. Departamento de Anatomía, Produción Animal e Ciencias Clínicas Veterinarias, Universidade de Santiago de Compostela. Departamento de Patoloxía Animal, Producció Animal, Sanitat Animal |
| المصدر: | Minerva. Repositorio Institucional de la Universidad de Santiago de Compostela instname Minerva: Repositorio Institucional de la Universidad de Santiago de Compostela Universidad de Santiago de Compostela (USC) Animals, Vol 11, Iss 166, p 166 (2021) Animals : an Open Access Journal from MDPI Zaguán: Repositorio Digital de la Universidad de Zaragoza Universidad de Zaragoza Zaguán. Repositorio Digital de la Universidad de Zaragoza IRTA Pubpro. Open Digital Archive Institut de Recerca i Tecnologia Agroalimentàries (IRTA) Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Animals Volume 11 Issue 1 |
| بيانات النشر: | MDPI, 2021. |
| سنة النشر: | 2021 |
| مصطلحات موضوعية: | Risk analysis, risk analysis, 040301 veterinary sciences, media_common.quotation_subject, Decision tree, Paratuberculosis, Article, 0403 veterinary science, Perception, Environmental health, lcsh:Zoology, medicine, Dairy cattle, lcsh:QL1-991, media_common, lcsh:Veterinary medicine, General Veterinary, Johne’s disease, Dairy herds, dairy cattle, 0402 animal and dairy science, 04 agricultural and veterinary sciences, medicine.disease, 040201 dairy & animal science, expert opinion, Geography, Expert opinion, Spain, Herd, lcsh:SF600-1100, Animal Science and Zoology, Johne's disease |
| الوصف: | Simple Summary Paratuberculosis remains one of the most important diseases of cattle worldwide. Control of disease is difficult and offers important challenges at both diagnostic and management levels. This paper describes a study aimed at quantification of expert opinion on risk factors for paratuberculosis infection in dairy herds in Spain. For this purpose, a panel of nine experts working in the field of paratuberculosis was selected. Risk factors were also included into a questionnaire that was responded to by 93 farms whose sanitary status was known. The most important risk factors for the introduction of MAP, according to expert opinions, were related to purchase and grazing practices. The scores obtained for each farm, based on the expert opinions, allowed MAP positive/MAP negative farms to be discriminated with 68.8% sensitivity and 68.7% specificity. Despite increased awareness of the disease and the fact that several countries are implementing control programs, there is still incomplete understanding of the epidemiology of the disease. This, together with the lack of completely reliable diagnostic methods, makes it of vital importance considering the inter-herd transmission factors in order to prevent the introduction of the disease. Prioritizing the most important factors should be useful for focusing future training initiatives and improving risk-reduction strategies in this economically important industry. Abstract This 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. |
| وصف الملف: | application/pdf |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7334d90d1f502e9b97b698eb9ee07fbf http://hdl.handle.net/10347/24475 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi.dedup.....7334d90d1f502e9b97b698eb9ee07fbf |
| قاعدة البيانات: | OpenAIRE |
| الوصف غير متاح. |