含硫氨基酸对猪生长性能及肠道功能的影响机制  

The Effects and Mechanisms of Sulfur Amino Acids on Growth Performance and Intestinal Function in Pigs

作　　者：宗恩艳 熊霞[2] 杨焕胜[1] 李建中[1] 黄鹏飞[1] 印遇龙[1,2] 

机构地区：[1]湖南师范大学生命科学学院动物营养与人体健康实验室,中国湖南长沙410081 [2]中国科学院亚热带农业生态研究所中国科学院亚热带农业生态过程重点实验室,中国湖南长沙410125

出　　处：《生命科学研究》2016年第5期466-470,共5页Life Science Research

基　　金：国家自然科学基金资助项目(31572420;31301988;31402089;31272261)

摘　　要：含硫氨基酸包括甲硫氨酸(又名蛋氨酸)、胱氨酸和半胱氨酸,其中蛋氨酸是动物的含硫必需氨基酸,是猪必不可少的营养元素。研究表明,科学地添加含硫氨基酸对猪的摄食、生长、免疫等方面有着重要的作用。肠道是消化、吸收营养物质最主要的场所,含硫氨基酸的主要代谢产物谷胱甘肽可促进肠道屏障功能的恢复,牛磺酸能参与抗氧化反应、渗透调节等生理过程。因此,添加适量的含硫氨基酸有助于提高猪的生长性能,维持猪的肠道健康。Sulfur amino acids, including methionine, cystine and cysteine, are essential nutrients for pigs. A- mong them, methionine is an essential amino acid that contains sulfur. Previous studies showed that sulfur- containing amino acids play important roles in porcine feeding, growth, immunity and so on. The gastroin- testinal tract is the primary site of digestion and absorption of nutrients. One of the main metabolites of sul- fur-containing amino acids is glutathione, which can promote recovery of the intestinal barrier function. And taurine, another main metabolite, participates in oxidative stress response, osmotic adjustment and other physiological processes. Therefore, the sulfur-containing amino acids can be used to improve the growth performance and maintain the intestinal health of pigs.

关 键 词：含硫氨基酸 猪 生长性能 肠道 

分 类 号：S852.21[农业科学—基础兽医学]