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Accession number;07A0049622
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| Title;Infection-cycles of Renibacterium salmoninarum in Hatcheries of Masu Salmon Oncorhynchus masou by Monitoring Specific Antibodies |
| Author;
OKUDA RITSUKO
(Hokkaido Univ.)
NISHIZAWA TOYOHIKO
(Hokkaido Univ.)
YOSHIMIZU MAMORU
(Hokkaido Univ.)
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Journal Title;Fish Pathology
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Journal Code:G0015B
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ISSN:0388-788X
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VOL.41;NO.4;PAGE.175-178(2006)
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| Figure&Table&Reference;FIG.1, TBL.1, REF.14 |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;Detection of antibodies against Renibacterium salmoninarum (R.s.), a causative agent of bacterial kidney disease (BKD), was conducted among apparently healthy fingerlings and broodstock of masu salmon Oncorhynchus masou. Antibodies against R.s. were detected from .GEQ. 50% of fingerlings in the hatcheries with BKD-histories and R.s. antigens were detected in some of antibody-positive fish, but not from those in the hatchery without a BKD-history. Although returning broodstock examined within two weeks after introduced into the hatchery showed all negative for anti-R.s. antibodies, 33% of those in the hatchery with BKD-histories became positive after two months of rearing for sexually maturation. Monitoring specific antibodies suggests that R.s. infection-cycle is completed between fingerlings and broodstock in hatcheries having BKD-histories. (author abst.) |
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