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Abstract

In an effort to develop non-invasive methods for the diagnosis of Ostertagia ostertagi and Fasciola hepatica infection in beef cattle, this study was undertaken to evaluate antibody-detection ELISAs in meat juice samples and to investigate the associations between test results and carcass...

Author(s)
Charlier, J.; Cat, A. de; Forbes, A.; Vercruysse, J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2009, 166, 3/4, pp 235-240
Abstract

In this survey, the epidemiology of gastrointestinal (GI) nematodes in dairy herds in five northwestern European countries was studied using a standardized Ostertagia ostertagi ELISA applied on bulk-tank milk, and a common questionnaire. The levels of exposure to GI nematodes were high in Belgium,...

Author(s)
Bennema, S. C.; Vercruysse, J.; Morgan, E.; Stafford, K.; Höglund, J.; Demeler, J.; Samson-Himmelstjerna, G. von; Charlier, J.
Publisher
Elsevier Ltd, Oxford, UK
Citation
Veterinary Parasitology, 2010, 173, 3/4, pp 247-254
Abstract

A cross-sectional questionnaire survey was performed on dairy herds in Flanders (Belgium) to detect management factors that are associated with an increased gastrointestinal parasite infection level of adult dairy cows. At the end of the grazing season, information concerning general herd factors,...

Author(s)
Charlier, J.; Claerebout, E.; Mûelenaere, E. de; Vercruysse, J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2005, 133, 1, pp 91-100
Abstract

Fasciola hepatica, Ostertagia ostertagi and Dictyocaulus viviparus are helminth parasites with a wide distribution and an important economic impact in cattle in temperate climates. This paper describes the spatial distribution of F. hepatica, O. ostertagi and D. viviparus in dairy herds in Flanders ...

Author(s)
Bennema, S.; Vercruysse, J.; Claerebout, E.; Schnieder, T.; Strube, C.; Ducheyne, E.; Hendrickx, G.; Charlier, J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2009, 165, 1/2, pp 51-57
Abstract

The aim of this study was to explore whether anti-Ostertagia ostertagi antibody levels measured by ELISA in individual milk samples hold promise as a decision parameter for either herd-level decisions or selective anthelmintic treatments by investigating (1) the relationship between individual and...

Author(s)
Charlier, J.; Vercruysse, J.; Smith, J.; Vanderstichel, R.; Stryhn, H.; Claerebout, E.; Dohoo, I.
Publisher
Elsevier B.V., Amsterdam, The Netherlands
Citation
Preventive Veterinary Medicine, 2010, 93, 2/3, pp 147-152
Abstract

An indirect Ostertagia ostertagi ELISA on milk is a promising diagnostic tool in bovine parasitology. Interpretation of the test results requires a good knowledge of the test characteristics. In this study, border effects, the repeatability of the ELISA and the effect of different factors such as...

Author(s)
Charlier, J.; Duchateau, L.; Claerebout, E.; Vercruysse, J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Preventive Veterinary Medicine, 2005, 68, 2/4, pp 277-288
Abstract

The present study reports on the development of a copro-antigen capture ELISA for detecting Ostertagia ostertagi infections in cattle. The ELISA was based on polyclonal rabbit antibodies, which recognize O. ostertagi excretory/secretory (ES) antigens. ES antigens are released by the metabolic...

Author(s)
Agneessens, J.; Claerebout, E.; Vercruysse, J.
Publisher
Elsevier Science B.V., Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2001, 97, 3, pp 227-238
Abstract

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;...

Author(s)
Forbes, A. B.; Vercruysse, J.; Charlier, J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2008, 157, 1/2, pp 100-107
Abstract

Antibody levels against Ostertagia ostertagi in the milk are a promising parameter to identify dairy cows or herds with production losses due to gastrointestinal nematodes. However, milk antibody levels can be influenced by udder-related factors. In this study, the effect of an experimentally...

Author(s)
Charlier, J.; Duchateau, L.; Vangroenweghe, F.; Claerebout, E.; Burvenich, C.; Vercruysse, J.
Publisher
Elsevier, Amsterdam, Netherlands
Citation
Veterinary Parasitology, 2006, 136, 2, pp 161-165
Abstract

Ostertagia ostertagi adult worm extracts were analysed by Western blotting using sera from calves experimentally infected with O. ostertagi and Cooperia oncophora. Strong differences in antigen recognition were noticed, even between animals from the same group. Two Ostertagia specific antigens with ...

Author(s)
Graaf, D. C. de; Berghen, P.; Hilderson, H.; Claerebout, E.; Vercruysse, J.
Citation
International Journal for Parasitology, 1994, 24, 5, pp 681-688

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