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镍是人体的一种必需微量元素,人体内有含镍酶,主要作用是参与糖代谢中葡萄糖转化为糖原的过程;也有人认为镍是胰岛素的辅助因子。体内镍主要存在于脑、脊髓、肺和心脏;血镍正常值为0.0042mg％。一般成人饮食中每天含镍约0.3～0.5 mg。镍的需要量和中毒量之间距离极大,尚未见到人类由于膳食而引起镍中毒的报告。生理量的镍对胚胎的作用尚不清楚,但大量镍对胚胎发育有明显的不利作用。一、对禽胚发育的影响
Nickel is an essential trace element of the human body, the body contains nickel enzyme, the main role is involved in glucose metabolism in the process of glucose into glycogen; some people think that nickel is a cofactor of insulin. Nickel in the body mainly in the brain, spinal cord, lungs and heart; normal blood nickel 0.0042mg%. The general adult diet containing nickel every day about 0.3 ~ 0.5 mg. There is a great distance between the demand for nickel and the amount of poisoning and no human reports of nickel poisoning due to diet have yet to be seen. The effect of physiological quantities of nickel on embryos is unclear, but large amounts of nickel have significant adverse effects on embryonic development. First, the impact on the development of embryos