
Incomplete reporting has the same effect on EPDs that it does on ratios. Therefore, the highest performing calves (calves 1 and 2) now receive much lower ratios, and subsequently EPDs, than if they had been compared to their entire contemporary group. Calves 3, 4, and 5 were once above average (ratios of 102-105) but are now below average and receive ratios below 100, which will result in lower EPDs than if they were compared to the entire group.
Next week we’ll take a look at Expected Progeny Differences and their Accuracy.
Source : osu.edu