期刊
FISH & SHELLFISH IMMUNOLOGY
卷 26, 期 4, 页码 619-624出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.fsi.2008.09.017
关键词
Cod; Fry; Vaccinations; Vibrio anguillarum; Antibody response
资金
- The Icelandic Research Council [0308000003.]
The purpose of the present study was to study specific and natural antibody levels in individual cod juveniles before and after being vaccinated against Vibrio anguillarum. Different vaccine preparations and vaccination regimes, i.e. bathing, dipping, i.p. injection or combination of treatments were employed and the performance of different groups to bath challenge by the bacterium tested. Antibody responses to V anguillarum antigens in groups vaccinated by bathing and/or dipping were negligible, while responses were observed in i.p. injected fish. Fish receiving i.p. injection in addition to bathing, showed significant antibody response. Both groups showed increased levels of natural antibodies while levels were low in other groups. Fish bathed or dipped showed higher Mortality when challenged than untreated fish, while fish that received a second vaccination showed the best protection. It was not ascertained whether there is a long term difference between the effects of immersion versus i.p. injection as a booster method. Levels of antibodies against V anguillarum antigens or natural antibodies in groups with the lowest mortalities show that neither could have been used to predict protection given by the vaccines tested. (C) 2008 Elsevier Ltd. All rights reserved.
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