Comparison of protection in rainbow trout (Salmo gairdneri) inoculated with and fed Hagerman redmouth bacterins
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Abstract
Rainbow trout (Salmo gairdneri) fed 1.0 mg Hagerman redmouth bacterin per fish for 2 wk had no detectable specific, circulating, agglutinating antibody. In fish given a single subcutaneous inoculation of 1.0 mg of bacterin per fish, antibody was present from 3 wk later until 3 mo later, when the final sample was taken. Median lethal doses at various intervals after the bacterins were administered indicated that the inoculated fish could withstand a greater challenge by subcutaneous inoculation of the virulent bacteria than the orally immunized fish. The fish fed the vaccine lost their protection within 6 wk, whereas the inoculated fish had high levels of protection through 3 mo. The degree of protection was also confirmed by a "natural" exposure challenge.
Publication type | Article |
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Publication Subtype | Journal Article |
Title | Comparison of protection in rainbow trout (Salmo gairdneri) inoculated with and fed Hagerman redmouth bacterins |
Series title | Journal of the Fisheries Research Board of Canada |
Volume | 31 |
Issue | 2 |
Year Published | 1974 |
Language | English |
Publisher | NRC Research Press |
Contributing office(s) | Western Fisheries Research Center |
Description | 3 p. |
First page | 214 |
Last page | 216 |
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