Heritabilities of Traits in Angus Group Breedplan.
Only part of the variation that we observe among animals is due to genetic differences. The majority of the variation is generally due to non-genetic factors such as differences in environment and nutrition.
The drgree to which genetic differences influence performance varies from trait to trait. This is explained by differences in the heritability of the traits. Growth and carcass traits tend to have moderate to high heritabilities(i.e. 20% to 40%), whilst female fertility and calving ease have low heritability (10% or lower).
GROUP BREEDPLAN takes into account the different degrees of heritability of various traits, and the known genetic relationships between the traits.