A study has been conducted to determine the effect of combination concentrate, silage and rice straw ammoniation on feed efficiency and weight gain of young Aceh cattle. This study was conducted at the Field Lab Peternakan Syiah Kuala University, Banda Aceh from October 29 until January 29, 2013 by using a Latin square design (RBSL) 4x4. This research used four Aceh cattle (age 1.5-2 years old, body weight 160-165 kg) treated in four periods, one period during the 3 weeks of treatment. A ratio of feeding treatment were A (concentrate + forage), B (silage + concentrate + forage), C (concentrate + forage + ammoniation), and D (+ silage + concentrate + forage ammoniation). The results giving a combination of concentrate, silage and forage (B) stimulated the growth higher than other treatments because is able to raise 0.58 kg ADG and feed efficiency of 11,04% also lowered the value of 9.35 kg of feed conversion. It was concluded a combination of concentrate, silage and rice straw ammoniation highly effective and efficient given the Aceh cattle. Keywords: Aceh Cattle, concentrate, silage, forage, rice straw