Acacia is a tropical legumes (tree legume) can be used as a source of roughage for ruminants. Because the Acacia consists of protein, fiber, vitamins, and minerals. There is also a substance cento) Phil. Which is suitable to use as ruminant feed, such as beef and dairy cows. From this research, the application of layer used as cattle feed (beef cattle. - cows) found that can increase feed intake resulted in growth rate increased. And increase the milk yield of dairy cows. Optimization and rumen fermentation with so concluded that the layer can be used as a source material for ruminant feeds both beef and dairy cattle as a source of protein. Vitamins and minerals as well. It also can help reduce the cost of feed