The Effect of Substitution Elephant Grass (<i>Pennisetum Purpureum</i>) With Ammoniated Corn Tumpi in Rations on Gas Production <i>In Vitro</i> Gas Test

Abstract Corn tumpi is an agricultural waste from corn production that has high potential as a substitute for forage feed, but its utilization is still lacking. Improving the quality of feed from agricultural waste can be done through ammoniation with urea. Ammoniation of agricultural processing industry waste in the form of corn tumpi can be utilized as a source of forage replacement feed because it increases nutrients and digestibility. The purpose of this study is to ascertain how ruminant gas production is affected when elephant grass is substituted with ammoniated corn tumpi . Rumen fluid and ruminant feeds were utilized. A one-way complete randomized design (CRD) including five treatments and four replications was employed in the study. Elephant grass 60% plus 40% concentrates (P0), elephant grass 50% plus 40% concentrates and 10% corn tumpi (P1), elephant grass 40% plus 40% concentrates and 20% corn tumpi (P2), elephant grass 50% plus 40% concentrates and 10% ammoniated corn tumpi (P3), and elephant grass 40% plus concentrates 40% and 20% ammoniated corn tumpi (P4) were the treatments on the rations provided. Analysis of variance (ANOVA) was utilized for data analysis. According to the findings, there was no discernible difference (P&gt;0.05) in the rates of production of total gas, fraction a, fraction b, and fraction c when ammoniated corn tumpi was substituted for elephant grass. The conclusion is that corn tumpi must replace elephant grass in ruminant feed diets up to 20%.