Source: https://www.afdb.org/fileadmin/uploads/afdb/Documents/Project-and-Operations/BURKINA_FASO-RAP-_Projet_de_D%C3%A9veloppement_de_l%E2%80%99Elevage_dans_la_Province_du_Soum-_phase_II__PDES_II_-29-07-2010_.pdf