330 < Age < 480 | 481 < Age < 799 | |||
Heifers: | Avg | SD1 | Avg | SD1 |
Avg. age at harvest, days | 437 | 30 | 563 | 65 |
Adj.2 carcass wt., lb. | 731 | 93 | 712 | 105 |
Adj. fat thickness, in. | .63 | .19 | .57 | .20 |
Adj. ribeye area, sq. in. | 12.30 | 1.46 | 12.32 | 1.61 |
Adj. marbling score | 6.93 | 1.37 | 6.71 | 1.45 |
No. of heifers | 6,843 | 9,188 | ||
Steers: | ||||
Avg. age at harvest, days | 438 | 26 | 527 | 46 |
Adj. carcass wt., lb. | 811 | 88 | 791 | 108 |
Adj. fat thickness, in. | .58 | .18 | .56 | .19 |
Adj. ribeye area, sq. in. | 12.81 | 1.39 | 12.80 | 1.56 |
Adj. marbling score | 6.26 | 1.12 | 6.13 | 1.32 |
No. of steers | 85,277 | 34,691 |
Bulls | Heifers | Steers | ||||
Trait | Avg | SD1 | Avg | SD1 | Avg | SD1 |
Age, days | 371 | 26 | 389 | 30 | 402 | 38 |
Gain, lbs/day | 2.91 | 0.70 | 1.51 | 0.52 | 2.81 | 0.73 |
Adj. scan weight, lb. | 1122 | 142 | 868 | 114 | 1104 | 168 |
Adj. %IMF, % | 3.83 | 1.14 | 4.87 | 1.44 | 4.98 | 1.44 |
Adj. ribeye area, sq. in. | 12.65 | 1.90 | 9.80 | 1.74 | 12.34 | 2.28 |
Adj. 12-13th rib fat thickness, in. | .28 | .10 | .26 | .11 | .40 | .16 |
Adj. rump fat thickness, in. | .30 | .11 | .30 | .12 | .41 | .15 |
No. of Animals | 1,396,781 | 897,286 | 14,363 |
Quality Grade | Amount of Marbling | Numerical Score |
---|---|---|
Prime + | Abundant | 10.0 - 10.9 |
Prime | Moderately abundant | 9.0 - 9.9 |
Prime - | Slightly abundant | 8.0 - 8.9 |
Choice + | Moderate | 7.0 - 7.9 |
Choice | Modest | 6.0 - 6.9 |
Choice - | Small | 5.0 - 5.9 |
Select | Slight | 4.0 - 4.9 |
Standard | Traces | 3.0 - 3.9 |
Standard | Practically devoid | 2.0 - 2.9 |
Utility | Devoid | 1.0 - 1.9 |