在饲料中添加氨基酸的作用

The Role of Amino Acids in Feed

一般在谷物和豆粕为主的植物性饲料中赖氨酸、蛋氨酸等含量较低．不能满足动物的需要，添加氨基酸可以大大节省蛋白质用量，降低饲养成本，提高动物的生产效率。赖氨酸又称为生长性氨基酸，是合成动物机体组织蛋白的必需物质，也是体内酶、激素、抗体等重要物质的主要成分。蛋氨酸是动物的一种重要的必需氨基酸。蛋氨酸羟基类似物可在动物体内转化为蛋氨酸并发挥其营养作用。此外，蛋氨酸能抑茵杀菌，并可减少氮的排泄，保护环境。

In general, the contents of lysine and methionine in the plant feed of grain and soybean meal are low, which can not meet the needs of animals. The addition of amino acids can greatly save the amount of protein with reducing the cost of feeding and improving the production efficiency of animals. Lysine, also known as a growth amino acid, is essential for the synthesis of tissue protein in animal body, and is also the main component of enzymes, hormones, antibodies and other important substances in the body. Methionine is an important essential amino acid in animals. Methionine hydroxy analogues can be converted into methionine which play a nutritional role in animals. In addition, methionine can be bacteriostat and sterilization, and can lower nitro- gen excretion for environment.