Potensi limbah sayur pasar kota Semarang sebagai pakan sapi potong ditinjau dari kandungan bahan kering, protein kasar dan energinya Vegetable waste from tradisional market in Semarang City for beef cattle feed based on dry matter, protein and energy requirement oleh Anis Muktiani text Semarang UNDIP 2008 Ind CATTLE FEEDS VEGETABLES ORGANIC WASTES PROTEIN CONCENTRATES PROXIMATE COMPOSITION