This study aims to determine the effect of replacing concentrates with Gamal leaves (Gliricidia sepium) in the ration on the product and the performance of rumen metabolites and the blood profile of PE goats. The experimental design used was the Latin square design, 4 x 4 that is 4 treatments with four 4 replications each experiment unit consisted of 1 animal. One treatment period for 2 weeks. The first week was adapted and the second week the data collection process was carried out. The

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... nt given is as follows. The treatments are A (45% concentrate and 55% field grass); B (Gamal 15% with 30% concentrate and 55% field grass); C (Gamal 30% with 15% concentrate and 55% field grass); D (Gamal 45% and field grass 55%). The results of this study indicate that the effect of the rate of replacement of concentrates with Gamal leaves (Gliricidia sepium) in the ration on rumen metabolite products PE goat was significantly different (P <0.05) total VFA concentration and VFA Parcial. The concentration of N-NH3, protozoan population the acidity of pH, methane production showed results that were not significantly different.