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用控制硒、镉含量的饲料喂养生长期Ｓ．Ｄ大鼠，观察低硒高镉对大鼠体内抗氧化作用的影响。结果表明：低硒使大鼠组织中谷胱甘肽过氧化物酶（ＧＳＨ－Ｐｘ）活性降低，脂质过氧化产物（ＬＰＯ）含量升高；加镉组大鼠组织中ＧＳＨ－Ｐｘ活性比不加镉组低，ＬＰＯ含量比不加镉组高；而同时饲以低硒高镉饲料时，组织中ＧＳＨ－Ｐｘ活性进一步降低．ＬＰＯ含量更加升高。提示低硒高镉在大鼠抗氧化作用中呈现相加作用。
Growth seasons S were fed with feed containing selenium and cadmium. D in rats and observe the effect of low selenium and high cadmium on antioxidation in rats. The results showed that low selenium reduced the activity of glutathione peroxidase (GSH-Px) and the content of lipid peroxide (LPO) in rat tissues, while the activity of GSH-Px in the group of cadmium Adding cadmium group low, LPO content higher than without cadmium group; while fed with low selenium and high cadmium feed, the organization GSH-Px activity further reduced. LPO content increased even more. These results suggest that low selenium and high cadmium show an additive effect on the antioxidation in rats.