Cross-infection between tropical goats and heifers with Haemonchus contortus - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Veterinary Parasitology Année : 2012

Cross-infection between tropical goats and heifers with Haemonchus contortus

Résumé

Developing effective biological control without the systematic use of anthelmintics is necessary to reduce the impact of gastrointestinal nematodes on small ruminants. Therefore, grazing management systems that use different host species to dilute nematodes in pasture appear to be promising for worm control. A trial was carried out to investigate the specificity of Haemonchus contortus for goats and cattle and to evaluate cross-infection between ruminant species. The effect of an experimental infection of 12 heifers by the free-living stages of H. contortus collected from goats (500 larvae per kg liveweight) was evaluated and compared to uninfected controls. After 28 and 35 days, egg excretion was measured. The experimental infection of heifers by H. contortus was not significant, with no egg excretion. These results, i.e., the lack of cross-infection of GIN between goats and cattle, suggest that integrated grazing using such animals could be employed for pasture dilution and decontamination.
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Dates et versions

hal-02644659 , version 1 (28-05-2020)

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Séverine d'Alexis, Maurice Mahieu, F. Jackson, Maryline Boval. Cross-infection between tropical goats and heifers with Haemonchus contortus. Veterinary Parasitology, 2012, 184 (2-4), pp.384-386. ⟨10.1016/j.vetpar.2011.08.030⟩. ⟨hal-02644659⟩

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