Enquète Épidémiologique Sur Quelques Facteurs de Risque Des Mammites
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En élevage bovin laitier, la mammite constitue une pathologie multifactorielle très fréquente et coûteuse. Peu d'études épidémiologiques ont porté sur cette maladie en Algérie. La présente étude s'est basée après une description de la situation constatée d'un échantillon d'élevages bovins sur l'identification, et l'appréciation de quelques facteurs de risque propres aux élevages bovins laitiers de la région Centre de l'Algérie. Pour l'étude descriptive, 45 élevages ont été étudiés alors que pour l'étude analytique 15 de ces 45 élevages sont choisis. Les résultats obtenus, ont permis de cerner un groupe de facteurs qui explique dans une certaine mesure l'incidence de cette maladie; ce sont par ordre d'importance les suivant: le stade de la lactation; le rang de la lactation; la taille du troupeau et la race. Ainsi, il semble que les mammites subcliniques sont plus fréquentes dans les grands troupeaux (classe4), surtout chez les vaches âgés (quatrième rangs de lactation et plus) mais notamment chez les vaches qui sont au début et en fin de lactation. Cette étude des facteurs de risque, est un préalable indispensable pour élaborer un plan de lutte contre les mammites.
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