When you look at a sire's EPDs, don't forget to consider the accuracy of the data. This table shows the possible change or variation of each trait at various accuracy levels. Seventy percent of all changes should fall within these ranges. A bull with a birth EPD of +4 pounds at .50 accuracy could possibly change as much at 2 pounds above or below that EPD as more data comes in.
| Accuracy and Associated Possible Change | ||||
|---|---|---|---|---|
| Accuracy | Birth Wt. EPD |
Weaning Wt. EPD |
Yearling EPD |
Milk EPD |
| .05 | 2.49 | 11.0 | 16.2 | 9.2 |
| .10 | 2.36 | 10.4 | 15.3 | 8.7 |
| .15 | 2.23 | 9.9 | 14.5 | 8.2 |
| .20 | 2.10 | 9.3 | 13.6 | 7.8 |
| .25 | 1.97 | 8.7 | 12.8 | 7.3 |
| .30 | 1.84 | 8.1 | 11.9 | 6.8 |
| .35 | 1.71 | 7.5 | 11.1 | 6.3 |
| .40 | 1.58 | 7.0 | 10.2 | 5.8 |
| .45 | 1.44 | 6.4 | 9.4 | 5.3 |
| .50 | 1.31 | 5.8 | 8.5 | 4.9 |
| .55 | 1.18 | 5.2 | 7.7 | 4.4 |
| .60 | 1.05 | 4.6 | 6.8 | 3.9 |
| .65 | 0.92 | 4.1 | 6.0 | 3.4 |
| .70 | 0.79 | 3.5 | 5.1 | 2.9 |
| .75 | 0.66 | 2.9 | 4.3 | 2.4 |
| .80 | 0.53 | 2.3 | 3.4 | 1.9 |
| .85 | 0.39 | 1.7 | 2.6 | 1.5 |
| .90 | 0.26 | 1.2 | 1.7 | 1.0 |
| .95 | 0.13 | 0.6 | 0.9 | .5 |
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All EPD's in this Sire Directory are based on the Spring 2008 Sire Evaluation. |
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