<![CDATA[The experiment was conducted to evaluate the nutritional value of ground peanut straw, king grass and corn forage and their ability to provide nutrients for livestock in terms of rumen fermentation. Three rumen-fistulated PO cattles were used to investigate rumen fermentation parameter (pH, NH3,VFA). The cattles were fed ground peanut straw (PS), king grass (KG) and corn forage (CF) ad libitum as single feed. The values of rumen fermentation parameters were analyzed using Analysis of Variance of Completely Randomized Design. The result showed that rumen pH, and of cattle fed with PS, KG and CF were 6.94, 6.68 and 6.71, NH3 concentrations 13.71, 6.85 and 4.37mg/100ml, and total VFA concentrations 48.99, 70.17 and 51.59 mmol/l, respectively. Values of pH and NH3 concentration were significantly different (p<0.05) among treatments, meanwhile VFA concentration were not significantly different. Ground peanut straw resulted the highest rumen fermentation parameters. Key words : Peranakan Onggole cattle, fibrous feed, nutritive value, rumen fermentation]]>
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