Figure 1.

Cross-validation (CV) scheme for each scenario where each block represents a group of 20 animals. The 100 Holstein individuals were divided in 5 groups of 20 animals each, and used as validation set once in each scenario. In the reference population the numbered blocks 1 to 5 represent the same 5 groups of 20 Holstein animals as in the validation sets; BSW were groups of 20 Brown Swiss animals; JER were groups of 20 Jersey animals; RDC were groups of 20 Nordic Red Dairy Cattle.