Department of Poultry and Avian Sciences, Cornell University, 306 Rice Hall, 14853, Ithaca, NY.
Biol Trace Elem Res. 1986 Dec;11(1):51-64. doi: 10.1007/BF02795524.
Studies were conducted to determine whether nutritional selenium (Se) status affects the nutritional status of the chick with respect to other trace elements, particularly copper (Cu) and Zinc (Zn). Severe Se deficiency was produced in chicks by the use of diets that contained exceedingly low contents (less than 0.010 ppm) of Se, but contained adequate amounts of all other known essential nutrients. This diet was based upon corn and soybean meal produced in areas of China with endemic Se deficiency of geobotanical origin. A level of at least 0.10 ppm Se was found to be required to maintain normal Se status of chicks fed this diet, and Se deficiency resulted in decreased levels of Cu, Zn, and molybdenum in the pancreas (liver and plasma levels were not affected). High dietary supplementation of Zn nor Cu did not affect the short-term utilization of Se, as indicated by the 18-h responses of Se-dependent glutathione peroxidase in plasma and liver.
研究旨在确定营养硒（Se）状况是否会影响雏鸡的营养状况，特别是与其他微量元素，如铜（Cu）和锌（Zn）的关系。通过使用含有极低含量（低于 0.010 ppm）的 Se 的饮食，雏鸡中会产生严重的 Se 缺乏，但这些饮食中含有所有其他已知的必需营养素。这种饮食基于玉米和大豆粉，这些原料来自中国存在与地质起源有关的硒缺乏地区。研究发现，至少需要 0.10 ppm 的 Se 才能维持喂食这种饮食的雏鸡的正常 Se 状态，而 Se 缺乏会导致胰腺中的 Cu、Zn 和钼水平降低（肝脏和血浆水平不受影响）。高膳食补充 Zn 或 Cu 并不会影响 Se 的短期利用，这可以通过血浆和肝脏中依赖 Se 的谷胱甘肽过氧化物酶的 18 小时反应来表明。
