Protective Efficacy of a Commercial β-hemolytic <i>Streptococcus</i> Vaccine for Japanese Flounder against <i>Streptococcus iniae</i> Infection of Threadsail Filefish
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- Ishii Yuji
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University
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- Yamada Toshiyuki
- Nagasaki Prefectural Institute of Fisheries
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- Sugihara Yukitaka
- Nagasaki Prefectural Institute of Fisheries
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- Takami Ikuo
- Tsushima Fisheries Expansion Advisory Center
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- Suga Koushirou
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University
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- Kanai Kinya
- Graduate School of Fisheries Science and Environmental Studies, Nagasaki University
Bibliographic Information
- Other Title
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- カワハギのβ溶血性レンサ球菌症に対する市販ヒラメ用ワクチンの有効性
- カワハギ ノ vヨウケツセイ レンサ キュウキンショウ ニ タイスル シハン ヒラメヨウ ワクチン ノ ユウコウセイ
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Abstract
A commercial β-hemolytic Streptococcus vaccine for Japanese flounder was examined for the protective efficacy against Streptococcus iniae infection of threadsail filefish Stephanolepis cirrhifer. In the artificial infection test a high mortality rate (90%) was obtained by intramuscular inoculation with S. iniae as low as 102 CFU/100 g body weight. In the vaccination test intraperitoneal inoculation with the vaccine at the usual and 1/10 dosages resulted in a high protective effect (RPS≥85%), and the high protective efficacy was kept for at least 7 months.
Journal
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- Fish Pathology
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Fish Pathology 48 (1), 29-31, 2013
The Japanese Society of Fish Pathology