UTILIZATION OF D-METHIONINE BY GROWING RATS

被引：7

作者：

FUNK, MA ^{[1
]}

HORTIN, AE ^{[1
]}

BAKER, DH ^{[1
]}

机构：

[1] UNIV ILLINOIS,DEPT ANIM SCI,URBANA,IL 61801

来源：

NUTRITION RESEARCH | 1990年 / 10卷 / 09期

关键词：

D-Methionine; L-Methionine; Rats;

D O I：

10.1016/S0271-5317(05)80044-2

中图分类号：

R15 [营养卫生、食品卫生]; TS201 [基础科学];

学科分类号：

100403 ;

摘要：

Two rat growth assays were conducted using chemically defined diets to determine the efficacy of D-methionine (MET) relative to L-MET. Experiment 1 established the linear growth response region for weanling rats fed a MET-free diet supplemented with graded levels of L-MET. Growth was linear when rats were fed L-MET levels between 0.10 and 0.25%. In experiment 2, the efficacy of D-MET was determined using the slope-ratio technique. Graded levels of D- and L-MET were fed to weanling rats, resulting in growth in the linear portion of the growth curve as established in experiment 1. Efficacy of D-MET was 88.5% of L-MET. Evaluation of urinary MET excretion revealed that only about 0.1% of the D-MET ingested was excreted via the kidneys. © 1990 Pergamon Press plc.

引用

页码：1029 / 1034

页数：6

共 15 条

[1]

BAKER DH, 1986, PROG FOOD NUTR SCI, V10, P133

[2]

BAKER DH, 1987, METHOD ENZYMOL, V143, P297

[3] EFFICACY OF THE D-ISOMER AND L-ISOMER OF N-ACETYLMETHIONINE FOR CHICKS FED DIETS CONTAINING EITHER CRYSTALLINE AMINO-ACIDS OR INTACT PROTEIN [J].