SUBTITUSI DEDAK PADI OLEH POD KAKAO YANG DIFERMENTASI Aspergillus niger DALAM RANSUM TERHADAP KARKAS DAN ORGAN DALAM AYAM BROILER (The Substitution of Rice Bran by Cocoa Pod Fermented with Aspergillus niger in Diet on Carcass and Internal Organs of Broil - Tarigan, Harmonista (Program Studi Peternakan Fakultas Pertanian USU Medan (Dept. of Animal Science, Faculty of, 2013)