Opportunities and constraints of crocodile ranching in Tanzania. A case study of Kaole, Mamba and Tumaini ranches

agriculteur agricultores alojamiento de animales animal housing animal needs animal pour cuirs et peaux animal products animal welfare animales de caza besoin des animaux bienestar animal caza chasse cocodrilo constraints contrainte crocodile crocodiles extensive husbandry farm management farmers game game farming gestion de l'exploitation agricole gestion des ressources gibier habitat habitats hunting incentives incentivos incitation logement des animaux manejo de fincas necesidades de los animales productos de origen animal produit animal resource management skin producing animals tanzania tanzanie