E coli DNA and oil adjuvant were separately injected into chickens of 15 day old,together with inactivated Newcastle disease virus(NDV).

• 用大肠杆菌DNA作为鸡新城疫灭活苗的佐剂接种15日龄雏鸡,以鸡新城疫油乳剂灭活苗为对照,用血凝抑制实验检测病毒特异性血凝抑制抗体。