Translate the following English sentence to French:
"In practical terms, Africa will achieve the first stage in growth according to the Rostow model if it protects its agriculture, its livestock farming, its self-employed craft industry, and its emergent economy."
Concrètement, c'est en protégeant son agriculture, ses élevages, son artisanat, son économie émergente, que l'Afrique franchira la première étape de la croissance selon le modèle de Rostow.