Prosjekt

Avl mot lakselus

Selection for increased resistance to salmon lice in salmon

Nøkkeldata

Startdato 1. januar 2009
Sluttdato 31. desember 2012
Finansiert av Norges forskningsråd (50 %) og Fiskeri- og havbruksnæringens forskningsfond (50 %)
I samarbeid med Universitetet i Bergen, Feed Control Norway AS (teller lus med digital fotoanalyse)

Salmon lice on farmed Atlantic salmon (Lepeophtheirus salmonis) in Norway represents a large cost for the industry and a risk for infestation of wild salmonid species. The resistance to the lice may be improved through selective breeding.

In farmed Atlantic salmon it is documented evidence of a substantial genetic variation in the number of salmon lice in a controlled challenge test and a high genetic correlation between this number and number of lice in a field test.

If this can be verified in a larger family material, the resistance in Atlantic salmon to the lice may be improved through selective breeding. Over time this may reduce the need for medicament treatment against the lice, reduce the risk of developing lice resistance to the medicaments and the life time of these medicaments, and reduce the infestation pressure on wild salmonid populations.

We will:

  • obtain more reliable estimate of the genetic variation in resistance to L. salmonis in Atlantic salmon
  • investigate the magnitude of genetic correlation between resistance to the salmon lice and other economic important production traits in Atlantic salmon
  • investigate if we can find biomarkers and genetic markers that can be used as predictors and thus indirect selection criteria for increased resistance to L. salmonis in Atlantic salmon
  • investigate if the counting of the number of lice per fish can be automatized using digital image analysis

 

Lakselus

Lakselus

Aktuelle saker

  • Sterkere i møte med lusa

    16. mai 2011

    Tester på seks årskull oppdrettslaks har vist det samme: det er stor variasjon i hvor godt ulike laksefamilier takler lusa. Oppdrettslaksen kan derfor gjennom avl gjøres sterkere i møte med lusa.

Prosjektleder

  • Bjarne Gjerde

    Seniorforsker

    Tlf: +47 64 97 04 64

    Mobil: +47 930 61 541