A system for determining traits for an individual mammal includes a first database with genomic data of known traits as well as identified correlations including details of the trait, mutation, disease risk and/or affected breeds of a mammal species, and a second database based on a gene test made for the individual mammal, the database including genotyping data of the individual mammal to be analyzed. A plurality of markers is determined for regions in the mammals genome so that at least first portion of the markers relates to correlations in various known gene based traits, and at least second portion of the markers used in determining differs from the first portion of the markers. Then the genotyping data of the individual mammals genome corresponding to the first portion of the markers is compared in order to make correlations and thereby determine a probability or risk or severity of the traits.
