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《Journal of Huazhong Agricultural》 2001-03
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Immune Response of Allogynogenetic Crucian Carp( Carassius auratus gibelio ) against Aeromonas hydrophila

Zhang Qiusheng Chen Changfu (Huazhong Agricultural University , Wuhan 430070,China)  
Allogynogenetic crucian carp( Carassius auratus gibelio )were vaccinated by injecting with the formalin killed A.hydrophila (F?AH).The level of immune response (the agglutinating antibody titres, lysozyme activity in serum,the phagocytic and bactericidal activity of leucocyte in blood) was detected. The immunized group, 28 days after immunization, the serum antibody titre and serum lysozyme activity reached 1∶18∶89 and 156.36 U/ml respectively, while the control group were 1∶0.83 and 138.68 U/ml respectively; The phagocytic percent(PP) and phagocytic index(PI) of leucocyte in blood were 63.38% and 6.02, while the control were 47.95% and 5.08 respectively. The bactericidal index(BI) of leucocyte in blood of vaccinated group was 1.59, while the control group was 1.15. The challenge test of the live pathogen was also carried out.The results showed that vaccination enhanced the immnune response of the fish. The relative percent survival of vaccinated fish was up to 73.7%.
【Fund】: 国家自然科学基金资助项目 (批准号 :39870 5 98)
【CateGory Index】: S943.117
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