Detection and transmission of infectious hematopoietic necrosis virus in rainbow trout
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Abstract
Detection and transmission of Infectious Hematopoietic Necrosis Virus in rainbow trout (Salmo gairdneri) was studied at a commercial trout hatchery. Transmission of virus was demonstrated via water, feed and contaminated eggs. If eggs from carrier females were incubated several weeks in virus-free water, the resulting fry did not become infected. However, if fry subsequently became infected they were lifetime carriers. Infectious virus was readily detectable in most tissues of moribund fish; in carriers it was detected in sex products of spawning fish, and in samples from the intestine of post-spawning fish, but not in samples from blood, feces, kidney, or liver. The carrier rate was not significantly different between sexes. It was concluded that adult carriers are the reservoir of infection and that transmission occurs primarily when carriers shed virus and expose susceptible fish or eggs.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Detection and transmission of infectious hematopoietic necrosis virus in rainbow trout |
| Series title | Journal of Wildlife Diseases |
| DOI | 10.7589/0090-3558-11.4.471 |
| Volume | 11 |
| Issue | 4 |
| Year Published | 1975 |
| Language | English |
| Publisher | BIoOne |
| Contributing office(s) | Western Fisheries Research Center |
| Description | 8 p. |
| First page | 471 |
| Last page | 478 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |