Switchgrass Decomposing in Cow Rumen (IMAGE) DOE/Joint Genome Institute Caption Here, a fragment of switchgrass is decomposing in contact cow rumen microbes. Credit Damon Tighe, DOE JGI Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.