Broad Selective Breeding Goals

AquaGen operates a large-scale selective breeding program with systematic measurement of 22 traits in Atlantic salmon and 12 traits in rainbow trout.  By measuring and keeping control over many important traits, we get a good basis for section for maximal selective breeding progress and a minimal degree of inbreeding.

Traits which are measured are categorized as effective and robust. Effective traits are of a production-technical and qualitative character and robust traits are of a health and animal welfare character.

Traits in the table below are measured and supervised in the selective breeding programs for Atlantic salmon and rainbow trout. The point of keeping control of many traits is to hinder inbreeding and secure that the progress in one characteristic does not case regression in another characteristic.

By the selection of breeding fish for the next generation, a few traits are weighted in relation to desired priority. If a client wants a fish which is especially resistant to disease, breeding fish which are strong in these characteristics are chosen.

Effective traits in AquaGen’s
selective breeding program
Atlantic
salmon
Rainbow
trout
Growth in fresh water X X
Growth in sea water,
correlated for gender
X X
Reduced early sexual maturity X X
Condition factor (weight/length)
correlated for gender
X X
Round weight X X
Head on gutted weight X X
Filet fat percent
correlated for gender
X X
Filet color X X
Filet weight, correlated for gender X
Filet weight,
correlated for gender
X
Filet thickness,
(thickest and thinnest point)
X
Loss from smolt to 3 kg X
Skin color X
Skin color, back X
Robust traits in AquaGen’s
selective breeding program
Atlantic
salmon
Rainbow
trout
Resistance against ISA X
Resistance against IPN X X
Resistance against Piscirickettsiosis X
Resistance against winter sore X
Stress tolerance X
Heart weight,
correlated for gender
X
Heart weight/body weight X
Skeletal deformities X X
Reduced side effects of vaccines,
correlated for gender
X