White spot syndrome ウイルスのクルマエビに対する感染実験用接種材料の調整

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  • 呉 金炉
    Laboratory of Fish Pathology, Faculty of Applied Biological Science, Hiroshima University
  • 鈴木 和典
    Laboratory of Fish Pathology, Faculty of Applied Biological Science, Hiroshima University
  • 有元 操
    Kamiura Station of Japan Sea-Farming Association
  • 西澤 豊彦
    Laboratory of Fish Pathology, Faculty of Applied Biological Science, Hiroshima University
  • 室賀 清邦
    Laboratory of Fish Pathology, Faculty of Applied Biological Science, Hiroshima University

書誌事項

タイトル別名
  • Preparation of an Inoculum of White Spot Syndrome Virus for Challenge Tests in Penaeus japonicus.

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抄録

An inoculum of white spot syndrome virus (WSSV), called penaeid rod-shaped DNA virus (PRDV) in Japan, was prepared for challenge tests in kuruma shrimp Penaeus japonicus. The hemolymph was drawn with PBS from moribund shrimp, which were intramuscularly (IM) inoculated three days before with a virus suspension prepared from naturally affected shrimp. The virus concentration in the hemolymph was quantified as 1.5×107 genome copies/μL hemolymph by competitive PCR. The LD50 of the inoculum prepared from the hemolymph stored at -80°C for 40 days was calculated by IM challenges as 10-4.2μL hemolymph /g shrimp or 9.5×102 genome copies/g shrimp. Virulence testes were also conducted through IM injections with the virus preparation stocked for 5 and 16 months. As a result, there was no significant difference in cumulative mortalities (p> 0.05) among the 3 challenge tests made after preservation of the virus in the hemolymph at -80°C for 40 days, 5 or 16 months.

収録刊行物

  • 魚病研究

    魚病研究 37 (2), 65-69, 2002

    日本魚病学会

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