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ID 45393
本文ファイル
著者
Kageyama, Tetsushi 大学院生物圏科学研究科
Kuwada, Tomonori
Ohara, Kenichi
Nouno, Aya
Umino, Tetsuya 大学院生物圏科学研究科 広大研究者総覧
Furusawa, Shuichi 大学院生物圏科学研究科 広大研究者総覧
キーワード
agglutination reaction
bacterial count
Flavobacterium psychrophilum
Plecoglossus altivelis altivelis
strain-dependent
NDC
畜産業
抄録(英)
Bacterial cold water disease (BCWD) in ayu (Plecoglossus altivelis altivelis) has a serious impact on aquaculture and fisheries. There is known to be a significant difference among ayu strains with regard to mortality caused by BCWD. In this study, the immune response of different ayu strains against Flavobacterium psychrophilum infection was observed. One strain was resistant to infection by F. psychrophilum, and the other was susceptible to infection by the same bacteria. The number of bacteria in the body was observed in each ayu strain, and the change in bacterial counts was similar. However, there was a significant difference in bacterial count in the spleen between the two strains on days 6, 9, 12 and 15 after exposure. To observe the immune response against F. psychrophilum, agglutination assay using serum was performed. An agglutination reaction in the resistant ayu strain was observed in 4 out of 6 ayu on day 6 after exposure, while no reactions in the susceptible ayu strain were observed in any sampled fish until day 12. However, some reactions in the susceptible ayu strain were observed in surviving ayu. These results indicate that there is a correlation between the presence of bacterial multiplication and agglutination reaction against F. psychrophilum.
掲載誌名
Journal of Veterinary Medical Science
75巻
12号
開始ページ
1571
終了ページ
1575
出版年月日
2013-07-30
出版者
The Japanese Society of Veterinary Science
公益社団法人日本獣医学会
ISSN
1347-7439
0916-7250
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
publisher
権利情報
Copyright (c) 2013 The Japanese Society of Veterinary Science
関連情報URL
部局名
生物圏科学研究科