Efek Perbedaan Komposisi Konsentrat terhadap Perbaikan Nilai Nutrisi Jerami Padi

Since rice straw is seasonal and low quality roughage, thus, a supplementation for it is needed. Lamtoro lea f meal (LLM) and soybean meal (SBM), hav e both soluble and bypass protein , so it enough potential to supply nutrients to optimize of rumen microbes and improv e animal performance. Supplementation with LLM or SBM significantly increase d dry matter, organic matter, crude protein and crude fiber intake ( P <0.05). This fact showed that LLM or SBM supplementation made an improvement of rumen fermentation by microbes. Comparison between LLM and SBM to basal diet clearly showed that basal diet wa s the lowest ( P <0.0 5 ) nutrien t intake and nutrien t digestibility, however, the animal fed basal diet degraded crude fiber was not affected . It has been shown that sup p lementation with lamtoro lea f meal or soybean meal we re palatable, fermentable and reasonably digestible. Therefore, the use of these feedstuffs as  supplement to rice straw are strongly recommended. Key words : concentrate , PO beef cattle, performance, digestibility