浸泡接种疫苗对翘嘴鳜细菌性烂鳃病的免疫效果

用酚灭活的柱状嗜纤维菌（Ｐ－ＣＣ）疫苗，菌体脂多糖（ＬＰＳ）以及将Ｐ－ＣＣ和ＬＰＳ混合后作为抗原，分别浸泡翘嘴鳜使免疫，并检测了受免鱼体的免疫保护力。结果表明，经３次疫苗浸泡接种后的鱼体血清中凝集抗体效价与对照组鱼没有显著差异（Ｐ〉０．０５）；而经活菌攻毒后的存活率，则是免疫组显著地高于对照组（Ｐ〈０．０５），以ＬＰＳ免疫组的免疫保护力（７１．９％）最强。

EFFECT ON VACCINATION AGAINST BACTERIAL GILL ROT DISEASE BY IMMERSION IN MANDARINFISH(Siniperca chuatsi B.)

The immune protection for bacterial gill rot disease in mandarinfish(Siniperca chuatsi B.)was determined by immersion with the phenol inactivated Cytophaga columnaris SC-6 strain(P-CC),the lipopolysaccharide of the for going organism(LPS)and the combination of P-CC and LPS respectively. The results indicated that serum of three kinds of vaccinated mandarinfish had no significant difference in compared with the control group(P>0.05)in agglutination titer. But the survival rate post challenged with virulent live bacteria(Cytophaga columnaris SC-6 strain),the vaccinated groups were higher then those of control group(P<0.05).And the LPS vaccinated group had the soundest immune protection.