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A Case report of Cyprinid Herpesvirus 2(CyHV-2) in Imported Ornamental Goldfish Carassius auratus

수입산 관상 금붕어(Carassius auratus)의 CyHV-2 감염 증례

  • Eul Bit, Noh (Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University) ;
  • Ji Hye, Jin (DaOn Fisheries Diseases management) ;
  • Hee Ju, Choi (Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University) ;
  • Kwang Il, Kim (Department of Aquatic Life Medicine, College of Fisheries Science, Pukyong National University) ;
  • Bo Seong, Kim (Department of Aquatic Life Medicine, College of Ocean Science and Technology, Kunsan National University)
  • 노을빛 (부경대학교 수산생명의학과) ;
  • 진지혜 (다온수산질병관리원) ;
  • 최희주 (부경대학교 수산생명의학과) ;
  • 김광일 (부경대학교 수산생명의학과) ;
  • 김보성 (군산대학교 수산생명의학과)
  • Received : 2022.10.08
  • Accepted : 2022.11.02
  • Published : 2022.12.31

Abstract

In this study, imported ornamental goldfish (Oranda and black moor) with high mortality was investigated with histopathological analysis. Fishes showed clinical symptoms characterized by gill necrosis and cumulative mortality ranging from 60% to 90% within a month after import from Thailand and China in 2021. CyHV-2 was detected in gill, kidney, spleen and liver of goldfishes. Histopathological analysis revealed epithelial necrosis, intranuclear inclusion bodies associated with viral symptoms in epithelial cell, macrophage infiltration and vacuolation in secondary lamella. In addition, disseminated granuloma formation was observed in various organs such as kidney, heart and mesenchymal membranes. These lesions refer to coinfections with CyHV-2 and other pathogens that cause chronic inflammation, which leads to mortality. Therefore, early disease monitoring needs to reduce the mortality when ornamental goldfish is imported.

Keywords

Acknowledgement

이 논문은 2022년도 군산대학교 수산과학연구소 학술연구비 지원에 의하여 연구되었음.

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