不同能氮水平对反刍动物瘤胃发酵的影响  

Effects of Different Energy and Nitrogen Levels on Ruminal Fermentation in Ruminants

作　　者：徐颖[1] 李柏浩 梁浩[2,4] 班志彬 赵晓东[2,4] 田志刚 魏炳栋[2,4] 闫晓刚 XU Ying;LI Baihao;LIANG Hao;BAN Zhibin;ZHAO Xiaodong;TIAN Zhigang;WEI Bingdong;YAN Xiaogang(College of Animal Science and Technology,Jilin Agricultural University,Jilin Changchun 130118,China;Animal Nutrition and Feed Institute,Jilin Academy of Agricultural Sciences,Jilin Gongzhuling 136100,China;Key Laboratory of Beef Cattle Genetics and Breeding,Ministry of Agriculture and Rural Affairs,Jilin Changchun 130118,China;Jilin Inter-Regional Cooperation Center for the Scientific and Technological Innovation of Animal Nutrient Metabolism,Jilin Gongzhuling 136100,China)

机构地区：[1]吉林农业大学动物科学技术学院,吉林长春130118 [2]吉林省农业科学院动物营养与饲料研究所,吉林公主岭136100 [3]农业农村部肉牛遗传育种重点实验室,吉林长春130118 [4]吉林省动物营养代谢跨区域合作科技创新中心,吉林公主岭136100

出　　处：《饲料工业》2024年第17期70-74,共5页Feed Industry

基　　金：吉林省科技发展计划项目[20210202035NC];现代农业产业技术体系项目[CARS-39];肉羊饲料原料净能值测定方法的建立[CXGC2022RCY003]。

摘　　要：对于反刍动物营养代谢的研究,离不开对瘤胃发酵的研究和探讨。近年来,我国玉米、豆粕价格居高不下,通常又依赖进口,为避免人畜争粮,在节本增效的大环境下,研究人员都在寻求精准营养。饲粮的能量与蛋白质水平是反刍动物维持正常生理需求、保障瘤胃发酵的重点。挥发性脂肪酸是反刍动物瘤胃发酵的主要产物,也是动物体内能量代谢的重要物质,而瘤胃产生的微生物蛋白则为反刍动物提供了主要的蛋白质营养。因此,文章主要从两方面(能氮比、能氮同步释放)综述不同能氮水平对反刍动物瘤胃发酵的影响,以期为配制精准饲粮提供参考。The study of nutrient metabolism of ru⁃minants is inseparable from the study of rumen fermentation.In recent years,the prices of corn and soybean meal are high,and often rely on im⁃ports.In order to avoid human and animal compe⁃tition for food,in the environment of cost saving and efficiency,people are seeking precision nutri⁃tion.Dietary energy and protein levels are impor⁃tant for ruminants to maintain normal physiological requirements and ensure rumen fermentation.Vola⁃tile fatty acids are the main products of rumen fermentation and important substances of energy metabo⁃lism in ruminants,and microbial proteins in rumen provide the main protein nutrition for ruminants.Therefore,the effects of different energy nitrogen levels on rumen fermentation in ruminants were re⁃viewed in this paper from two aspects(energy to nitrogen ratio and simultaneous release of energy to ni⁃trogen),so as to provide reference for formulating precise diets.

关 键 词：反刍动物 瘤胃发酵 能氮比 能氮同步释放 精准营养 

分 类 号：S816[农业科学—饲料科学]