翘嘴鳜肝肾坏死症免疫预防的研究

用福尔马林，酚分别灭活的病原菌ＬＫ－４两种菌苗及粗脂多糖（ＬＰＳ）作为抗原，分别免疫注射翘嘴鳜５周后，检测了受免和对照鱼体的血清凝集抗体效介，血液中白细胞的吞噬活性，杀菌活性，免疫血清对吞噬细胞活性的调理指数，并进行了人工攻毒试验。毒力攻击的结果表明，３组受免鱼中，以ＰＫＣ组获得的免疫保护力最高，达９４．４％，其次为ＬＰＳ组，达８８．９％，ＦＫＣ组为７７．８％，而对照组仅有１０％的存活率。

Studies on Immunoprophylaxis of Liver-Kidney Necrosis in Mandarinfish (Siniperca chuatsi B.)

Mandarinfish were immunized respectively by intraperito neal injection w ith three kinds of vaccines, FKC,PKC and LPS.The agglutinating antiboby titers o f serum,phagocytic activity and bactericidal activity of blood phagocytes in im munized and control fish were examined ,and the relative percent survival were d etected to measure the aquired immunity against the artificial challenge five we eks after immunization. The rusults showed a clear enhancement of agglutinating antibody titers,phagocytic activity and bactericidal activity in the immunized m andarinfish. Among three kind of vaccines, PKC and LPS are more effective than F KC. According to our observation ,the head_kidney of mandarinfish seemed to play a important role in prophylacting the disease, liver_kidney necrosis of mandari nfish.