Susceptibility of koi carp, common carp, goldfish, and goldfish x common carp hybrids to cyprinid herpesvirus-2 and herpesvirus-3

Ronald Hedrick, Thomas B. Waltzek, Terry S. McDowell

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

Hybrid goldfish (male goldfish Carassius auratus x female common carp Cyprinus carpio) were completely resistant to mortality following experimental infections with cyprinid herpesvirus-2 (CyHV-2) and moderately resistant to cyprinid herpesvirus-3 (CyHV-3). In contrast, examination of the parental species demonstrated that goldfish were highly susceptible to CyHV-2 infections and that both common carp and koi (a variant of common carp) were highly susceptible to CyHV-3. Approximately 50% of the hybrids examined at 25 d after intraperitoneal injection with either CyHV-2 or CyHV-3 possessed viral genomic DNA, as detected by polymerase chain reaction assays. These initial trials suggest that hybrid goldfish have a natural resistance to mortality following experimental challenge with CyHV-2 and CyHV-3. However, additional studies that examine virus replication, including the potential for the development of a carrier state in hybrids, are needed. The production of hybrids for the food fish market may represent one means of avoiding the severe and negative impacts of the disease associated with CyHV-3.

Original languageEnglish (US)
Pages (from-to)26-34
Number of pages9
JournalJournal of Aquatic Animal Health
Volume18
Issue number1
DOIs
StatePublished - Mar 1 2006

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Cyprinid herpesvirus 2
Cyprinid herpesvirus 3
koi
cyprinid
goldfish
Cyprinus carpio
carp
carrier state
Carassius auratus
intraperitoneal injection
virus replication
infection
polymerase chain reaction
mortality
markets
genomics
DNA
assays
fish
virus

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Susceptibility of koi carp, common carp, goldfish, and goldfish x common carp hybrids to cyprinid herpesvirus-2 and herpesvirus-3. / Hedrick, Ronald; Waltzek, Thomas B.; McDowell, Terry S.

In: Journal of Aquatic Animal Health, Vol. 18, No. 1, 01.03.2006, p. 26-34.

Research output: Contribution to journalArticle

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