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Cell grazing and Haemonchus contortus control in sheep: lessons from a two-year study in temperate Western Europe

Authors :
Ruiz-Huidobro, C.
Sagot, L.
Lugagne, S.
Huang, Yayu
Milhes, M.
Bordes, L.
Prévot, F.
Grisez, C.
Gautier, D.
Valadier, C.
Sautier, Marion
Jacquiet, P.
Interactions hôtes-agents pathogènes [Toulouse] (IHAP)
Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Toulouse (ENVT)
Institut National Polytechnique (Toulouse) (Toulouse INP)
Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées-Institut National Polytechnique (Toulouse) (Toulouse INP)
Université Fédérale Toulouse Midi-Pyrénées-Université Fédérale Toulouse Midi-Pyrénées
UMT Santé des petits ruminants
Ecole Nationale Vétérinaire de Toulouse (ENVT)
Centre Interrégional d'Information et de Recherche en Production Ovine (CIIRPO)
Génétique Physiologie et Systèmes d'Elevage (GenPhySE )
École nationale supérieure agronomique de Toulouse [ENSAT]-Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Vétérinaire de Toulouse (ENVT)
This research was funded by the UMT 'Maîtrise de la Santé des Troupeaux de Petits Ruminants', Toulouse, France and by the Centre Interrégional d’Information et de Recherche en Production Ovine, Institut de l’Elevage, Limoges, France.
Source :
Scientific Reports 1 (9), Non pagine. (2019), Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019), Scientific Reports, Scientific Reports, Nature Publishing Group, 2019, 9, pp.12699. ⟨10.1038/s41598-019-49034-y⟩
Publication Year :
2019

Abstract

International audience; Managing infections of sheep with anthelmintic resistant gastrointestinal nematodes (GIN) is a major challenge for sheep producers in Western Europe. New methods of grazing management have been poorly explored as a component of an integrated and sustainable control of these parasites. Therefore, the purpose of this study was to evaluate the effect of two different types of grazing systems of sheep (intensive cell grazing versus conventional rotational grazing) on GIN infections over two years in a farm located in a temperate environment of Western France. When considering the whole study, the type of grazing system did not influence significantly the intensity of egg excretions of adult ewes even if the proportion of ewes excreting high numbers of GIN eggs was higher in cell grazing system than in rotational grazing system. The most striking result of this survey was the effect of grazing system on the GIN species composition harbored by ewes and by their lambs: with time, the proportions of H. contortus infections were lower in cell grazing system than in rotational grazing system. In conclusion, the cell grazing system, as implemented in this study, could limit the importance of this highly pathogenic nematode species in sheep.

Details

Language :
English
ISSN :
20452322
Database :
OpenAIRE
Journal :
Scientific Reports 1 (9), Non pagine. (2019), Scientific Reports, Vol 9, Iss 1, Pp 1-9 (2019), Scientific Reports, Scientific Reports, Nature Publishing Group, 2019, 9, pp.12699. ⟨10.1038/s41598-019-49034-y⟩
Accession number :
edsair.pmid.dedup....5476b689463e078c0fb1fdbf064524eb