ORBi: Zimmer Jean-Yves - Chemical composition of silage residues sustaining the larval development of the Culicoides obsoletus/Culicoides scoticus species (Diptera: Ceratopogonidae)

Reference : Chemical composition of silage residues sustaining the larval development of the Culicoi...


	Document type :	Scientific journals : Article
	Discipline(s) :	Life sciences : Entomology & pest control Life sciences : Veterinary medicine & animal health
	To cite this reference:	http://hdl.handle.net/2268/132486

Title :	Chemical composition of silage residues sustaining the larval development of the Culicoides obsoletus/Culicoides scoticus species (Diptera: Ceratopogonidae)
Language :	English
Author, co-author :	Zimmer, Jean-Yves [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
	Saegerman, Claude [Université de Liège - ULg > Département des maladies infectieuses et parasitaires > Epidémiologie et analyse des risques appl. aux sc. vétér. >]
	Losson, Bertrand [Université de Liège - ULg > Département des maladies infectieuses et parasitaires > Parasitologie et pathologie des maladies parasitaires >]
	Beckers, Yves [Université de Liège - ULg > Sciences agronomiques > Zootechnie >]
	Haubruge, Eric [Université de Liège - ULg > Services administratifs généraux > Vice-Recteur de Gembloux Agro Bio Tech >]
	Francis, Frédéric [Université de Liège - ULg > Sciences agronomiques > Entomologie fonctionnelle et évolutive >]
Publication date :	2013
Journal title :	Veterinary Parasitology
Volume :	191
Issue/season :	1-2
Pages :	197-201
Audience :	International
ISSN :	0304-4017
Keywords :	[en] Culicoides ; Silage residues ; Breeding sites ; Obsoletus complex ; Bluetongue
Abstract :	[en] Culicoides (Diptera: Ceratopogonidae) are biological vectors of bluetongue virus (BTV). Bluetongue is a viral disease that affects domestic and wild ruminants. Since its recent emergence in northern Europe, this disease has caused considerable economic losses to the sheep and cattle industry. The biotopes, and more particularly the chemical characteristics which are suitable for larval development of the main vector species, are still relatively unknown. This study shows that the larvae of biting midges belonging to the species Culicoides obsoletus and Culicoides scoticus are able to breed in different types of silage residue (maize, grass, sugar beet pulp and their combinations). The chemical composition of substrates strongly influences the presence of the immature stages of these biting midges. Higher lignin and insoluble fibre contents seem to favour their presence and could play the role of a physical support for semi-aquatic larvae. In contrast, higher concentrations of magnesium and calcium are negatively correlated with the presence of these two species. These data will help to locate and monitor the breeding sites of these species and could contribute to the control of these insects on farms.
Target :	Researchers ; Professionals ; Students
Permalink :	http://hdl.handle.net/2268/132486
Commentary :	Copyright (c) 2012 Elsevier B.V. All rights reserved.

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