Potter L M, Shelton J R
Poult Sci. 1979 May;58(3):609-15. doi: 10.3382/ps.0580609.
Nine experiments involving a total of 3697 turkeys divided into 48 pens per experiment were conducted to determine the methionine or total sulfur amino acid and the protein requirements of Medium White turkeys between 0 and 4 weeks and between 4 and 8 weeks of age. In each experiment, 24 diets varying in protein and methionine content in a 4 X 6 factorial design were fed. Body weight gains were found to be more closely related to the total sulfur amino acid content than to the methionine content of practical type corn-soybean meal diets. For the respective age periods between 0 to 4 and 4 to 8 weeks, the total sulfur amino acid requirements of Medium White turkeys were approximately 1.10 and 1.00% or 3.8 and 3.4 mg per kcal metabolizable energy, and the minimum protein requirements were at least 27% and 24% when diets contained sufficient total amino acids.
进行了9项试验，每次试验将总共3697只火鸡分为48个栏，以确定0至4周龄和4至8周龄中型白羽火鸡的蛋氨酸或总含硫氨基酸以及蛋白质需求量。在每次试验中，采用4×6析因设计投喂24种蛋白质和蛋氨酸含量不同的日粮。结果发现，实际型玉米-豆粕日粮的体重增加与总含硫氨基酸含量的关系比与蛋氨酸含量的关系更为密切。对于0至4周龄和4至8周龄这两个相应年龄段，中型白羽火鸡的总含硫氨基酸需求量分别约为1.10%和1.00%，或每千卡代谢能3.8毫克和3.4毫克，当日粮含有足够的总氨基酸时，最低蛋白质需求量分别至少为27%和24%。
