单词	rumen
释义	rumen /ˈruːmɛn / noun (plural rumens or rumina /ˈruːmɪnə/) Zoology The first stomach of a ruminant, which receives food or cud from the oesophagus, partly digests it with the aid of bacteria, and passes it to the reticulum.When calves are fed milk it is funnelled through the oesophageal groove to the true stomach, bypassing the rumen.... So mammals are unable to digest cellulose, except some ruminants that have cellulase-secreting bacteria in their rumens. He was interested in improving digestive processes within the rumen, the first of the four stomachs of ruminant animals, where cellulose is broken down by bacteria. Derivatives ruminal adjective ... Few studies have been conducted to examine the effects of live yeast products on in vitro mixed ruminal microorganism fermentation. The effects of both S. cerevisiae supplements on the fermentation of soluble starch by mixed ruminal microorganisms are shown in Table 4. Low quality forage also can negatively affect reproduction by decreasing efficiency of ruminal N utilization caused by limited energy supply. Origin Early 18th century: from Latin, literally 'throat'.
随便看	unprudent unprudential unprudently unpruned unprying unpsychological unpublic unpublicised unpublicized unpublish unpublishable unpublished unpucker unpuckered unpuddled unpuff unpuffed unpulled unpulleyed unpulped unpulverized unpumpable unpumped unpunched unpunctated

英语词典包含243303条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。