Abstract:A low liveweight gain of of Kacang goats when given grass as single feed indicated that additional feed is required to increase their gowth performance. This study was done to examine the effect of addition of Gliricidia (Gliricidia sepium) leaf or rice bran on feed intake, feed digestibility and liveweight gain of Kacang goat given Mulato (Brachiaria mulato) grass. Twenty four male Kacang goat, approximately 13.4 ± 0.6 kg in initial weight and 10 months of age, were housed in individual metabolic pen and allocated to one of three dietary treatments. The experimental design was a completely randomized block design, with three treatments and eight replicates (goats). The treatments were Mulato grass ad libitum (M), Mulato + Gliricidia (1% weight/d on dry matter basis) (MG), and Mulato + rice bran (1% weight/d on dry matter basis) (MR). The experiment was run for eight weeks period (two weeks for adaptation and and six weeks for measurement period, respectively). Parameters measured were liveweight gain (LWG), dry matter intake (DMI) and dry matter digestibility (DMD). The result showed that dietary treatment significantly (P < 0.05) affected the LWG, DMI and DMD of Kacang goat. Goat given Mulato grass had the lowest LWG, DMI and DMD with value 58 g/d, 2.77% weight/d and 57.61%, respectively. Goat received Mulato + Gliricidia and Mulato + rice bran had a significant higher LWG (73 g/d and 76 g/d, respectively), DMI (3.25% weight/d and 3.65% weight/d, respectively) and DMD (62.28% and 63.19%, respectively). However, no significant difference (P > 0.05) between goat received Mulato + Gliricidia and Mulato + rice bran. In conclusion, this study demonstrated that protein or energy contents of the diet influenced growth, feed intake and digestibility of Kacang goat.