Family differences in relative growth of diploid and triploid Atlantic salmon (Salmo salar L.)

Comparisons of growth for diploid and triploid full sibs from 20 families of Atlantic salmon (Salmo salar L.), ranging from 4 to 24 progeny/family, involved 628 individuals. Length and weight data, after approximately 75 weeks in seawater, indicated higher within and between family variances in triploids than in diploids. Regression analyses revealed that improvement of triploid populations might require measurements on triploid sibs of the diploid to be involved in reproduction. (C) 2001 Elsevier Science B.V, All rights reserved.