反刍动物瘤胃原虫的化学感知及信号通路研究进展  

Advances in Chemical Sensing and Signal Transduction of Ruminal Protozoa in Ruminants

作　　者：崔爽青 李胜利[2] 孙海洲[2] 金鹿[2] 桑丹[2] 张春华[2] 张崇志[2] 邴新帅 白刚 CUI Shuangqing;LI Shengli;SUN Haizhou;JIN Lu;SANG Dan;ZHANG Chunhua;ZHANG Chongzhi;BING Xinshuai;BAI Gang(Inner Mongolia Agricultural University,Hohhot,Inner Mongolia,010018,China;Institute of Animal Nutrition and Feed,Inner Mongolia Academy of Agricultural&Animal Husbandry Sciences, Hohhot,Inner Mongolia,010031,China;Ordos Agricultural and Animal Products Quality Center,Ordos,Inner Mongolia,017000,China)

机构地区：[1]内蒙古农业大学,内蒙古呼和浩特010018 [2]内蒙古农牧业科学院动物营养与饲料研究所,内蒙古呼和浩特010031 [3]鄂尔多斯市农畜产品质量安全中心,内蒙古鄂尔多斯017000

出　　处：《家畜生态学报》2018年第11期1-5,共5页Journal of Domestic Animal Ecology

基　　金：国家自然科学基金(31460617);国家现代农业产业技术体系建设专项资金资助(CARS-39-11);内蒙古自治区重大基础研究开放课题;内蒙古自治区"草原英才"工程产业创新创业人才团队项目联合资助

摘　　要：瘤胃内原虫数量较少,但体积相对较大,在瘤胃发酵和营养利用中的作用也不容忽视。与传统的低质粗饲料饲养模式相比,瘤胃原虫在现有的高精料条件下对小肠蛋白质的贡献应当被提到相当重要的位置。原虫对不同营养底物有化学感知作用,其中PI3K/AKT/mTORC1通路在瘤胃原虫对营养的化学感知上发挥重要作用。了解瘤胃原虫化学感知作用信号传导规律,对于保障反刍动物瘤胃健康和提高日粮氮利用率具有重要意义。The number of protozoa in the rumen is small,but its role in rumen fermentation and nutrient utilization cannot be ignored because of its relatively bigger body size.Compared with the traditional low-quality roughage feeding model,the contribution of the rumen protozoa to the small intestinal protein under the existing high concentrate feeding system should be referred to as a very important role.Protozoa are chemosensitive to different nutrient substrates,in which the PI3K/AKT/mTORC1 pathway plays an important role in the chemosensing of the rumen protozoa.It is significant to understand the signal transduction rule of rumen protozoa chemosensing to protect rumen health and improve nitrogen use efficiency of ruminants.

关 键 词：瘤胃原虫 化学感知 信号通路 

分 类 号：S811.5[农业科学—畜牧学]