Tengerdy R P, Brown J C
Poult Sci. 1977 May;56(3):957-63. doi: 10.3382/ps.0560957.
Dietary supplementation of either vitamin E (300 mg./kg. diet) or vitamin A (60,000 I.U./kg. diet) significantly reduced E. coli caused mortality, but the combination of the two vitamins did not. Protection was attributed to increased antibody production and increased phagocytosis, although neither factor alone gave a significant correlation with mortality. Vitamin E level significantly increased especially in the spleen of supplemented chicks, but vitamin A suppressed this increase, partially explaining the lack of protection in vitamin E and A supplemented chicks.
在日粮中添加维生素E（300毫克/千克日粮）或维生素A（60,000国际单位/千克日粮）均可显著降低大肠杆菌引起的死亡率，但两种维生素联合使用时却无此效果。保护作用归因于抗体产生增加和吞噬作用增强，尽管单独这两个因素与死亡率均无显著相关性。补充维生素E组雏鸡的维生素E水平显著升高，尤其是在脾脏中，但维生素A抑制了这种升高，这部分解释了同时补充维生素E和A的雏鸡缺乏保护作用的原因。
