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Blood-feeding patterns of horse flies in the French Pyrenees

Baldacchino Frédéric, Gardes Laëtitia, De Stordeur E., Jay-Robert Pierre, Garros Claire. 2014. Blood-feeding patterns of horse flies in the French Pyrenees. Veterinary Parasitology, 199 (3-4) : pp. 283-288.

Journal article ; Article de revue à facteur d'impact
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Quartile : Q1, Sujet : VETERINARY SCIENCES / Quartile : Q2, Sujet : PARASITOLOGY

Abstract : Horse flies can mechanically transmit Besnoitia besnoiti, the agent of bovine besnoitiosis. Although previously limited to enzootic areas, especially the French Pyrenees Mountains, bovine besnoitiosis is now considered a re-emerging disease in western Europe. To improve understanding of the role of horse flies as mechanical vectors, this study investigated their blood-feeding ecology in the eastern French Pyrenees, in two high-altitude summer pastures whose main domestic ungulates were cattle, and in a wildlife park with native fauna. Species-specific PCR assays were conducted to identify the sources of blood meals: wild boar, horse, cattle (or bison), sheep (or mouflon), goat, red deer, roe deer and izard (or Pyrenean chamois). In La Mouline pasture, tabanids (N = 20) fed on red deer (70%) and cattle (30%). In Mantet pasture, tabanids (N = 24) fed on cattle (52%), red deer (20%), wild boar (16%), horse (8%) and sheep (4%). In the wildlife park, Tabanus bromius (N = 32), the most abundant species collected, fed on red deer (85%), bison (9%) and wild boar (6%). Despite relatively high densities in both the pastures and in the wildlife park, small wild ungulates (izard, mouflon and roe deer) were not detected as a source of blood meals. Only two mixed blood meals were identified in two specimens of T. bromius: cattle/horse for the specimen collected in the pastures, and bison/wild boar for the specimen collected in the wildlife park. Our findings showed that tabanids display a level of opportunistic feeding behaviour, in addition to a preference for red deer, the latter being particularly true for Philipomyia aprica, the most abundant species collected in the pastures. (Résumé d'auteur)

Mots-clés Agrovoc : Besnoitia, Comportement alimentaire, Sang, Préférence alimentaire, Animal domestique, Animal sauvage, Bétail, Bovin, Cheval, Sanglier, Bison, Ovin, Cerf, Cervus elaphus, PCR, Cytochrome b, Enquête

Mots-clés géographiques Agrovoc : Pyrénées, Languedoc-Roussillon

Mots-clés complémentaires : Besnoitia besnoiti

Classification Agris : L72 - Pests of animals
L73 - Animal diseases
U30 - Research methods

Champ stratégique Cirad : Axe 4 (2014-2018) - Santé des animaux et des plantes

Auteurs et affiliations

  • Baldacchino Frédéric, Centre national de la recherche scientifique (FRA)
  • Gardes Laëtitia, CIRAD-BIOS-UMR CMAEE (FRA)
  • De Stordeur E., Centre national de la recherche scientifique (FRA)
  • Jay-Robert Pierre, Centre national de la recherche scientifique (FRA)
  • Garros Claire, CIRAD-BIOS-UMR CMAEE (FRA) ORCID: 0000-0003-4378-5031

Source : Cirad - Agritrop (https://agritrop.cirad.fr/571654/)

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