Holstein and Jersey estimated variance components and heritabilities for milk, fat, and protein yields, productive life (PL), daughter pregnancy rate (DPR), somatic cell score (SCS), fat percent (fat%) and protein percent (protein%) using four different models.

HO = Holstein; JE = Jersey. aMA = only additive effects included; MAD = additive and dominance (values) effects included; MAD2 = additive and dominance (deviations) effects included; and MAD3 = additive and dominance effects included as well as cows with genotype probabilities derived using genotyped ancestors. bVar = variance components; = additive variance, = dominance variance, = residual variance for MAD, = residual variance for MAD2, = residual variance for genotyped cows, = residual variance for cows with genotype probabilities derived from genotyped sire and dam, = residual variance for MAD3, = additive heritability, and = dominance heritability.