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Showing items 1 through 9 of 11.Les pays de l'Afrique du Sahel sont soumis, et particulièrement au cours des dernières décennies, aux à aléas climatiques et éprouvent de ce fait les plus grandes difficultés à assurer leur autosuffisance alimentaire.
The President-Elect of the African Farming Systems Research and Extension Network sent a request to the Executive Secretary of the Economic Commission for Africa inviting Mr. G.I.
Formulation of cost-effective preventive control programmes for helminth infection in small ruminants should be based on sound epidemiological knowledge of the time relationship between contamination of pastures and the seasonal availability of infective larvae in a given geographic area.
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