Prevalence and impacts of animal trypanosomosis in Vogan sheep and Djallonke sheep in southern of Togo
Guiguigbaza-Kossigan Dayo,
Essodina Talaki,
Balabadi Dao,
Kokouvi Soedji,
Zakaria Bengaly,
Chia Valentine Yapi-Gnaore
Affiliations
Guiguigbaza-Kossigan Dayo
PhD, Maitre de recherche en génétique animale, Togolais, Centre International de Recherche-Développement sur l’Elevage en zone Subhumide (CIRDES), 01 BP 454 Bobo-Dioulasso 01, Burkina Faso, Tel : (00226) 70 85 56 49. / Institut du Sahel (INSAH/CILSS), BP: 1530 Bamako Mali, Email : [email protected]
Essodina Talaki
Doctorat Unique, Maitre de Conférences, Togolais, Ecole Supérieure d’Agronomie, Université de Lomé (ESA/UL), Email : [email protected]
PhD, Togolais, Directeur Général de l’Institut National de Formation Agricole (INFA), BP : 401 Kpalimé, TOGO. Email : [email protected]
Zakaria Bengaly
Doctorat/HDR, Chargé de recherche en Parasitologie-Epidémiologie, Burkinabé, Directeur scientifique du Centre International de Recherche-Développement sur l’Elevage en zone Subhumide (CIRDES), 01 BP 454 Bobo-Dioulasso 01, Burkina Faso. Email : [email protected]
Chia Valentine Yapi-Gnaore
PhD, Directrice de recherche en zootechnie, Ivoirienne, Directrice Générale du Centre International de Recherche-Développement sur l’Elevage en zone Subhumide (CIRDES), 01 BP 454 Bobo-Dioulasso 01, Burkina Faso. Email : [email protected]
The aim of this study was to estimate the prevalence of animal trypanosomosis and its impact on the Packed red Cell Volume (PCV) in Vogan sheep (VS) and Djallonke sheep (DS) in two administrative regions of southern-Togo (Maritime and Plateau Regions). A total of 206 samples (104 VS and 102 DS) were analysed by microscopic observation of buffy coat, PCR and indirect ELISA. Using the three diagnostic techniques, the prevalence was 24.51% in Djallonke sheep and 20.19% in Vogan sheep with a clear predominance of Trypanosoma vivax infection. Geographical location (canton) influenced significantly the prevalence of trypanosome infections and the PCV; the highest recorded prevalence was obtained in Dagbatchi and Sevagan locations, associated with the lowest PCV. No significant difference was observed between PCV of VS and those of DS in Maritime Region. We concluded that even with a phenotype of Sahelian sheep, VS is well adapted in this area and has developed a certain degree of trypanotolerance similar to DS. However, Djallonke sheep in the Maritime Region (Vo Prefecture) might have become less trypanotolerant comparatively to those originating from the Plateau Region. These results could be used to update the epidemiological situation of trypanosomosis in this region and showed that the sheep genetic improvement strategies should take into account animal trypanosomosis.
