[生长母猪对特定氨基酸的活性及需求。2. 蛋氨酸和胱氨酸]
[The activity of and requirements for selected amino acids in growing female swine. 2. Methionine and cystine].
作者信息
Liebert F, Gebhardt G
机构信息
Sektion Tierproduktion und Veterinärmedizin, Karl-Marx-Universität Leipzig, Wissenschaftsbereich Tierernährungsphysiologie.
出版信息
Arch Tierernahr. 1987 Feb;37(2):159-67. doi: 10.1080/17450398709425345.
The methionine/cystine efficiency of ten protein sources including that of different charges of the same protein source was ascertained in N balance experiments with a total of 60 female pigs in the live weight range of 35-50 kg. The variability of the derived sulfur amino acids (SAS) efficiency coefficient (Csas) ranged between 0.64... 0.91 based on the SAS efficiency of casein as a standard. There was an analogous differentiation for the derived requirement values on the basis of the analysed methionine/cystine values of the proteins. For a protein retention of 100 g/day and a live weight of 40 kg, 6.2g methionine/cystine was ascertained based on the highest SAS efficiency (Csas = 1) as yet.
在氮平衡实验中，对10种蛋白质来源（包括同一蛋白质来源的不同电荷形式）进行了蛋氨酸/胱氨酸效率测定，实验共用了60头体重在35 - 50千克的雌性猪。以酪蛋白的硫氨基酸（SAS）效率为标准，得出的SAS效率系数（Csas）的变异范围在0.64…0.91之间。根据所分析蛋白质的蛋氨酸/胱氨酸值，得出的需求值也有类似的差异。对于蛋白质潴留量为100克/天且体重为40千克的情况，基于迄今最高的SAS效率（Csas = 1），确定蛋氨酸/胱氨酸需求量为6.2克。
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