Establishment of an Infectious Hematopoietic Necrosis Virus (IHNV)-resistant Rainbow Trout Strain by Repetition of Selective Breeding Based on Artificial Infection

DOI Web Site 8 References
  • Inoue Ryo
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Maki Shigeru
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Kasai Kazuhiko
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Yonezawa Junya
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Hasegawa Atsuko
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Ono Atsushi
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Jo Toshiaki
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Tsuji Hiroshi
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Arima Taeko
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Ryu Takehiro
    Tokyo Metropolitan Island Area Research and Development Center for Agriculture, Forestry and Fisheries
  • Nagao Momoko
    Tokyo Development Foundation for Agriculture, Forestry and Fisheries
  • Kumomi Kouhei
    Tokyo Development Foundation for Agriculture, Forestry and Fisheries

Bibliographic Information

Other Title
  • 人為感染に基づく選抜育種の反復によるIHN耐性ニジマスの作出

Abstract

<p>To reduce losses induced by infectious hematopoietic necrosis (IHN), selective breeding of rainbow trout Oncorhynchus mykiss strains was conducted using artificial infection with the IHN virus (IHNV) TK8901, which was isolated in 1989. ​The cumulative mortality rate of the artificially infected rainbow trout strain decreased after successive rounds of selective breeding, reaching less than 5% from the 8th generation of selection. ​The cumulative mortality rate of the 9th generation of this strain infected with IHNV isolated in Tokyo in 2016 was significantly lower than that of the unselected strain. ​These results indicate that, after the 8th generation, rainbow trout strains that have survived from artificial infection have become resistant to IHNV infection.</p>

Journal

  • Fish Pathology

    Fish Pathology 58 (3), 99-103, 2023-09-15

    The Japanese Society of Fish Pathology

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