Cov ntaub ntawv project Qhov project site:Tanzania Hom:Automatic H yam broiler raising khoom Cov khoom siv ua liaj ua teb: RT-BCH3330 Kev teeb tsa ntawm lub broiler ua liaj ua teb niaj hnub thiab tso saib ntawm sab hauv ntawm lub tsev qaib: