Fumoux F., Traoré Leroux T., Roelants G.E.. 1985. Correlation of serum zinc levels with resistance of cattle to trypanosomiasis. Acta Tropica, 42 : 39-44.
Autre titre : Corrélation entre le taux de zinc dans le sérum et la trypano tolérance des bovins
Matériel d'accompagnement : 1 micro-fiche numéro VT851125
Résumé : Zinc, copper and magnesium levels were determined by atomic absorp tion spectrophotometry in the serum of 32 cattle (Zébus and Baoulés) which were proven to be sensitive to African trypanosomiasis under field challenge and 45 cattle (Baoulés and Ndamas/Baoulés) which were proven to be resistant. Copper and magnesium levels were similar in all animals but zinc levels were higher in sensitive animals (1.50 ppm) than in resistant ones (1.10 ppm) (p inférieur à 10-5); the reported normal levels of serum zinc is 1.00 ppm. These differences persisted on repeated measurements and whether individuals were infected with trypanosomes or not. Elevated levels of zinc depressed the stimulation of bovine T cells by trypanosomes in vitro and is reported to inhibit antigen presentation by macrophages. Zinc levels may be an influencial factor determining susceptibility or resistance of West African cattle to trypanosomiasis
Mots-clés Agrovoc : bovin, trypanosomose, résistance aux maladies, zinc
Mots-clés géographiques Agrovoc : Burkina Faso
Mots-clés complémentaires : Sérum (latex), Trypanotolérance
Classification Agris : L73 - Maladies des animaux
L72 - Organismes nuisibles des animaux
Auteurs et affiliations
- Fumoux F.
- Traoré Leroux T.
- Roelants G.E.
Autres liens de la publication
- Localisation du document : BA_PEBA881 [(Bibliothèque de Baillarguet)]
Source : Cirad - Agritrop (https://agritrop.cirad.fr/446925/)
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