An analysis of levels of infectious pancreatic necrosis virus in Atlantic salmon,Salmo salarL., broodstock in Scotland between 1990-2002
| Autor: | Eann S. Munro, T. S. Hastings, Colin P. Millar |
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| Rok vydání: | 2010 |
| Předmět: |
Veterinary medicine
Veterinary (miscellaneous) Salmo salar Population Fresh Water Broodstock Aquatic Science Biology Virus Cell Line Fish Diseases Aquaculture Prevalence Animals Seawater Salmo education Infectious pancreatic necrosis virus education.field_of_study business.industry Incidence (epidemiology) Aquatic animal Birnaviridae Infections biology.organism_classification Virology Scotland Female business |
| Zdroj: | Journal of Fish Diseases. 33:171-177 |
| ISSN: | 1365-2761 0140-7775 |
| DOI: | 10.1111/j.1365-2761.2009.01114.x |
| Popis: | Throughout this study period the prevalence of infectious pancreatic necrosis virus (IPNV) in Scottish farmed Atlantic salmon was high in the marine environment but relatively low in fresh water. In order to minimize the risk of vertical transmission of infection from parent to progeny, all IPNV infected broodstock populations had to undergo testing of all fish for the virus at the time of stripping and eggs from positive parents were destroyed. Between 1990 and 2002 over 68 000 Atlantic salmon broodfish were individually screened for IPNV by cell culture isolation and enzyme linked immunosorbent assay. Generalized linear mixed models were used to assess the influence of geographical region, age, sex and year on IPNV prevalence in Atlantic salmon broodstock. This analysis determined that the age and sex of the broodfish and the geographical region of the broodstock stripping site did not have a statistically significant influence on IPNV prevalence within the broodstock parental population. However, there was a statistically significant temporal increase in IPNV prevalence from 1990 to 2002. |
| Databáze: | OpenAIRE |
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