Tengerdy R P, Nockels C F
Poult Sci. 1975 Jul;54(4):1292-6. doi: 10.3382/ps.0541292.
The supplementation of either vitamin E (300 mg./kg. diet) or vitamin A (60,000 I.U./kg. diet) to a standard chick ration increased the protection of six week old immunized chickens against E coli infection, decreasing mortality from about 40% to 5%. The combination of the two vitamins, however, did not give as much protection as either vitamin alone. Vitamin E or A did not protect chicks from weight loss and severe morbidity due to infection, but slightly increased the rate of recovery.
在标准雏鸡日粮中添加维生素E（300毫克/千克日粮）或维生素A（60,000国际单位/千克日粮），可增强六周龄免疫雏鸡对大肠杆菌感染的抵抗力，死亡率从约40%降至5%。然而，两种维生素联合使用的保护效果不如单独使用其中任何一种维生素。维生素E或维生素A不能防止雏鸡因感染而体重减轻和严重发病，但能略微提高恢复率。
