Resistance to Loma salmonae in Rainbow Trout Oncorhynchus mykiss Subsequent to Recovery from an Initial Low-dose Cohabitation Exposure

DOI Web Site 参考文献19件
  • Harkness Jennifer E.
    Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island
  • Speare David J.
    Department of Pathology and Microbiology, Atlantic Veterinary College, University of Prince Edward Island

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Protective response was investigated in rainbow trout Oncorhynchus mykiss that had recovered from a primary low-dose cohabitation challenge of Loma salmonae and were re-challenged via a high dose oral exposure under experimental conditions. Compared to uninfected control fish, the previously exposed trout had 82.6% and 86.0% fewer xenomas, and many of the recovered fish (47% and 55%) showed no signs of infection whereas 95% and 100% of the control fish developed xenomas on their gills in two experimental tanks. From the results we conclude that rainbow trout develop protective immunity following low-dose exposure to L. salmonae acquired through cohabitation. The relevance of this with respect to unexpected patterns of disease presentation at commercial salmon farming sites is discussed.

収録刊行物

  • 魚病研究

    魚病研究 46 (1), 34-37, 2011

    日本魚病学会

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