alexa Persistence of infectious pancreatic necrosis virus (IPNV) in Scottish salmon (Salmo salar L.) farms.
Agri and Aquaculture

Agri and Aquaculture

Journal of Aquaculture Research & Development

Author(s): Murray AG

Abstract Share this page

Abstract Infectious pancreatic necrosis is a disease that is causing increasing loses to Scottish Atlantic-salmon farms. I asked the question: is infection of individual salmon farms persistent or transient? Using Fisheries Research Services' Fish Health Inspectors' data, conditional probabilities that a farm would (time 0) be infected were estimated for farms that had been infected [P(I(0)|I(-T))] or free [P(I(0)|F(-T))] from infectious pancreatic necrosis virus (IPNV) when a sample was taken at some earlier time (-T). A logistic-regression model was used to estimate these conditional probabilities with T; this model was multilevel to account for regional and inter-annual level differences in prevalence of IPNV. In freshwater, conditional probabilities remained substantially different for periods of at least 4 years, so, although many farms did change infection status, IPNV either persisted or recurred at specific freshwater farms. Marine farms showed similar conditional probabilities after about 2 years following a positive or a negative sample, indicating that infection was transient. Management of larger areas and exchanges between farms might be more effective than farm-level management at controlling marine IPNV. This article was published in Prev Vet Med and referenced in Journal of Aquaculture Research & Development

Relevant Expert PPTs

Relevant Speaker PPTs

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords