新城疫H120、C30、C30+油剂苗疫苗免疫大法肉鸡免疫效果

Immunity effects study of using the H120、C30,C30 and oils Newcastle disease vaccines immunizing to the GUANG-XI Da Fa chickens

鸡新城疫(ND)是一种急性、高度接触性传染病,是危害我国养鸡业最严重的烈性传染病之一。用H120、C30疫苗、C30+油剂苗对广西大法鸡进行新城疫免疫,经过一定免疫期,采血,分离血清样品,用β-微量血凝抑制试验检测其抗体效价。其结果显示：用C30+油剂苗,在同一批次、同一段时间内新城疫抗体水平最高,其免疫效果最好。

Newcastle disease is a kind of acute and high contact infectious disease. According to the International Veterinary Bureau, it is belong to ＂A＂ class infectious disease. Newcastle disease had prevailed in many years in my country and it is old disease. To the keep chick＇s industry, it is one of most serious and strong infectious disease at present. Using the H120, C30, C30 and oils Newcastle disease vaccines immunizing to the Guang-Xida fa chickens. After spending given immunity periods, collected its blood, separated serum, and detected Newcastle disease antigen validity through β-micro blood coagulation inhibition tests. The results show that after using the C30 and oils Newcastle disease vaccines, the Newcastle disease antigen validity are most high in the chickens, at the same grade, at the same period.