harlan teklad官網(wǎng)動物飼料 TD.99366氨基酸飲食 TD.90262蛋氨酸和膽堿缺乏飲食
氨基酸定義
一些氨基酸定義的公式如下所示。當(dāng)一種飲食需要缺乏一種或多種氨基酸，或者需要調(diào)整特定的氨基酸水平時，就使用這種飲食。
公式實例:
有時，這種飲食被用來進(jìn)一步降低某些維生素的背景水平，這些維生素存在于蛋白質(zhì)來源，如酪蛋白或無維生素的酪蛋白(醇提取的)酪蛋白中。一些葉酸缺乏的飲食使用這種方法。
大多數(shù)氨基酸定義的飲食的氨基酸譜是基于哈珀和羅杰斯的工作(J.Nutr)。(1965)87：267-276)，不代表酪蛋白等完整蛋白質(zhì)來源的氨基酸譜。還可以指定其他氨基酸譜。當(dāng)氨基酸被去除或減少時，如果需要，可以進(jìn)行等氮調(diào)節(jié)。
Amino acid defined | Envigo
A few amino acid defined formulas are shown below. This type of diet is used when a diet needs to be deficient in one or more amino acids, or adjustments need to be made to specific amino acid levels.
Formula examples:
- TD.99366????? Amino acid diet
- TD.90262????? Methionine?and choline deficient diet
- TD.00434????? Folic acid deficient diet
- TD.99386????? No lysine AA diet
Sometimes this type of diet is used to further reduce the background level of certain vitamins that are found in protein sources such as casein or vitamin-free (alcohol extracted) casein. Some folic acid deficient diets utilize this approach.
The amino acid profile for most amino acid defined diets is based on work by Harper and Rogers (J. Nutr. (1965) 87:267-276) and is not representative of the amino acid profile of an intact protein source such as casein. Other amino acid profiles can be specified. When an amino acid(s) is removed or reduced, isonitrogenous adjustment can be made if required.