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Resistance to OsHV-1 Infection in Crassostrea gigas Larvae ArchiMer
Dégremont, Lionel; Morga, Benjamin; Trancart, Suzanne; Pépin, Jean-francois.
The ostreid herpesvirus(OsHV-1) is one of the major diseases that affect the Pacific oyster Crassostrea gigas. Selective breeding programs were recently shown to improve resistance easily to OsHV-1 infections in spat, juvenile, and adult oysters. Nevertheless, this resistance has never been investigated in larvae, whereas this developmental stage has crucial importance for the production of commercial hatcheries, as well as explaining the abundance of spatfall. A first trial tested several viral suspensions at several concentrations using contaminated water with OsHV-1 in 4- and 10-day-old larvae that we reproduced from an unselected broodstock. In follow up on the results, one viral suspension at a final concentration of 10+6 OsHV-1 DNA copies per L was...
Tipo: Text Palavras-chave: Larvae; Crassostrea gigas; OsHV-1; Disease resistance; Mortality.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00313/42441/41796.pdf
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