Épidémiologie des helminthoses gastro-intestinales des petits ruminants dans la zone sylvo-pastorale au Sénégal

M Ndao, J Belot, J Zinsstag, K Pfister

    Research output: Contribution to journalA1: Web of Science-article

    Abstract

    An epidemiological survey on gastrointestinal helminthiasis in 51 sheep and 51 goats was held in the tree-cropping pasture region in Senegal from October 1990 to September 1991. All the animals examined were infected with at least 1 helminth species. Three trematodes (Fasciola gigantica, Schistosoma bovis, Amphistomatids), 2 cestodes (Moniezia expansa, Cysticercus tenuicollis) and 9 nematodes were identified. The most important parasite in sheep was Haemonchus contortus while Trichostrongylus colubriformis predominated in goats. The worm burden in sheep was significantly higher than in goats (P < 0.001). L4 larvae of H contortus were found in 85-87% of the small ruminants. There was a negative correlation between haematocrit, number of worms and egg per gram of faeces during the rainy season. These results show that the gastrointestinal nematode burden is high during the rainy season. During the dry season (9 months) nutritional problems are aggravated by adult worms and residual larvae.
    Original languageFrench
    JournalVeterinary Research
    Volume26
    Issue number2
    Pages (from-to)132-139
    ISSN0928-4249
    Publication statusPublished - 1995

    Keywords

    • B780-tropical-medicine
    • Helminthic diseases
    • Animal diseases
    • Gastrointestinal diseases
    • Haemonchus contortus
    • Trichostrongylus colubriformis
    • Small ruminants
    • Pastoralism
    • Sheep
    • Goats
    • Seasonality
    • Senegal
    • Africa-West

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