| A survey of the exposure to Ostertagia ostertagi in dairy cow herds in Europe through the measurement of antibodies in milk samples from the bulk tank. | |
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MedLine Citation:
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PMID: 18692964 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Measurement of antibodies to Ostertagia ostertagi in bulk tank milk (BTM) has value as a diagnostic indicator for potential production losses and anthelmintic treatment responses in dairy herds. Most of the recent data on O. ostertagi antibodies in milk have been generated in Belgium and Canada; the purpose of this study was to determine the range of O. ostertagi antibody levels in several European countries. BTM samples were collected during the autumn of 2005 and 2006 from a total of 1185 dairy herds from dairy farming regions in Denmark, Germany, Ireland, Italy, the Netherlands, Portugal, Spain and the United Kingdom. Antibody titres to O. ostertagi were determined by indirect ELISA and expressed as optical density ratios (ODR). In addition, relationships between ODR and management practices were investigated. For each country the mean ODR and the 25th-75th percentile values were determined. Mean BTM ODR values in herds with access to yards, paddocks and pastures ranged from 0.3 in Italy to 0.6 in Portugal and the UK/Ireland. The BTM ODR values obtained in this study were generally lower than those described in the literature for Belgium, but comparable with those in Canada. Variations between different European countries appeared to reflect different husbandry practices, particularly those related to access to pasture. The association analyses showed correlations between the BTM O. ostertagi ODR, outside access and grazing management, consistent with the publications from Belgium and Canada. When diagnostic values appropriate for different production situations and environments have been further validated, the test will provide an objective, quantitative assessment of the O. ostertagi status of a dairy herd and the possible impact this may have on performance and potential responses to anthelmintic treatment. This represents a significant step forward in evidence-based medicine for dairy veterinarians, advisors and farmers. |
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Authors:
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A B Forbes; J Vercruysse; J Charlier |
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Publication Detail:
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Type: Journal Article Date: 2008-07-01 |
Journal Detail:
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Title: Veterinary parasitology Volume: 157 ISSN: 0304-4017 ISO Abbreviation: Vet. Parasitol. Publication Date: 2008 Oct |
Date Detail:
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Created Date: 2008-09-15 Completed Date: 2009-01-07 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7602745 Medline TA: Vet Parasitol Country: Netherlands |
Other Details:
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Languages: eng Pagination: 100-7 Citation Subset: IM |
Affiliation:
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Merial SAS, 29 Avenue Tony Garnier, Lyon 69007, France. andy.forbes@merial.com |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Animals Antibodies, Helminth / analysis* Canada / epidemiology Cattle Cattle Diseases / epidemiology, immunology, parasitology* Dairying Enzyme-Linked Immunosorbent Assay / veterinary Europe / epidemiology Female Lactation / physiology Milk / chemistry* Ostertagia / immunology* Ostertagiasis / epidemiology, parasitology, veterinary* |
| Chemical | |
Reg. No./Substance:
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0/Antibodies, Helminth |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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