<p>Sun X. Z., Hoskin S. O., Muetzel S., Molano G., Clark H. 2011. Effects of forages chicory (Cichorium intybus)&nbsp;and perennial ryegrass (Lolium perenne) on methane emissions in vitro and from sheep. Animal Feed Science and Technology, 166-167, 391-397.</p>
<p><a href="https://doi.org/10.1016/j.anifeedsci.2011.04.027"><strong>Read more</strong></a> (external link)&nbsp;</p>