This study examines the effect of adding coffee husks (CH), cacao by-product (CBP) and passion fruit (PBP) (fresh-matter basis) in silage elephant grass cv. Napier on nutritional characteristics. The experiment was laid out a completely randomized design with 3 × 4 factorial arrangement represented by three additives (CH, CBP or PBP) four inclusion levels (0, 12, 24 36%). Four replicates were u...