Peterson R P, Jensen L S
Poult Sci. 1975 May;54(3):795-8. doi: 10.3382/ps.0540795.
Two experiments were conducted with chicks to compare the effectiveness of vitamin E,selenium and cystine in preventing the deleterious effects of dietary silver. Adding 900 p.p.m. silver to a diet marginal in vitamin E and selenium significantly depressed growth and caused a high mortality during the four-week experiment. Most of the mortality was due to exduative diathesis. Including either 1 p.p.m. selenium or 100 I.U. vitamin E per kg. in the diets with silver prevented the growth depression and mortality. Adding 0.15% cystine stimulated growth, but failed to rpevent mortality. In a second experiment, chicks were grown on the diet containing silver with and without cystine to 15 days of age, at which time approximately 50% of the chicks exhibited signs of exudative diathesis. At that time they were either continued on the same diet of fed diets supplemented with selenium or vitamin E. Both vitamin E and selenium reduced mortality during the following two-week period, but vitamin E. was more effective than selenium.
进行了两项以雏鸡为对象的实验，以比较维生素E、硒和胱氨酸在预防日粮中银的有害影响方面的效果。在维生素E和硒含量处于临界水平的日粮中添加900 ppm的银，在为期四周的实验中显著抑制了生长并导致了高死亡率。大部分死亡是由于渗出性素质。在含银日粮中每千克添加1 ppm的硒或100国际单位的维生素E可防止生长抑制和死亡。添加0.15%的胱氨酸可促进生长，但未能防止死亡。在第二项实验中，雏鸡在含银且添加或不添加胱氨酸的日粮中饲养至15日龄，此时约50%的雏鸡表现出渗出性素质的迹象。那时，它们要么继续饲喂相同的日粮，要么饲喂添加了硒或维生素E的日粮。在接下来的两周内，维生素E和硒都降低了死亡率，但维生素E比硒更有效。
