Viral encephalopathy and retinopathy in aquaculture: a review

Type Article
Date 2017-05
Language English
Author(s) Doan Q. K.1, 2, Vandeputte Marc1, 3, Chatain Beatrice1, Morin T4, Allal FrancoisORCID1
Affiliation(s) 1 : IFREMER, UMR 9190, MARBEC, Chemin Maguelone, F-34250 Palavas Les Flots, France.
2 : Thai Nguyen Univ Agr & Forestry TUAF, TNU, Quyet Thang Commune, Thai Nguyen City, Vietnam.
3 : Univ Paris Saclay, AgroParisTech, GABI, INRA, Jouy En Josas, France.
4 : Anses, Ploufragan Plouzane Lab, Unit Viral Dis Fish, Plouzane, France.
Source Journal Of Fish Diseases (0140-7775) (Wiley), 2017-05 , Vol. 40 , N. 5 , P. 717-742
DOI 10.1111/jfd.12541
WOS© Times Cited 117
Keyword(s) betanodavirus, disease resistance, genetics, nervous necrosis virus, selective breeding

Viral encephalopathy and retinopathy (VER), otherwise known as viral nervous necrosis (VNN), is a major devastating threat for aquatic animals. Betanodaviruses have been isolated in at least 70 aquatic animal species in marine and in freshwater environments throughout the world, with the notable exception of South America. In this review, the main features of betanodavirus, including its diversity, its distribution and its transmission modes in fish, are firstly presented. Then, the existing diagnosis and detection methods, as well as the different control procedures of this disease, are reviewed. Finally, the potential of selective breeding, including both conventional and genomic selection, as an opportunity to obtain resistant commercial populations, is examined.

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