Table 4.
Quintile means for variables related to carcass measurements in the dataset
| Item1 | Quintile2 | SEM3 | ||||
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | ||
| Number of pens | 149 | 150 | 149 | 150 | 149 | — |
| Hot carcass weight, kg | 402.9a | 398.8a | 398.0a | 387.9b | 382.4b | 3.30 |
| 12th rib fat, cm | 1.52a | 1.39b | 1.34b,c | 1.27c,d | 1.24d | 0.034 |
| Longissimus muscle area, cm2 | 90.8 | 90.5 | 90.4 | 89.1 | 88.7 | 0.61 |
| Marbling score | 583.9 | 581.9 | 581.4 | 578.4 | 567.5 | 5.55 |
| Quality grade score | 5.4 | 5.4 | 5.3 | 5.3 | 5.1 | 0.07 |
1Marbling score, where 500 = Small0, 600 = Modest0, 700 = Moderate0, etc. Quality grade score is derived from marbling score, where 5 = Choice−, 6 = Choice0, 7 = Choice+, etc.
2Quintles are based on NEm residuals (formulated NEm minus growth performance-predicted NEm), where Quintile 1 has the most negative differences and Quintile 5 has the most positive differences.
3Standard error of quintile means. The largest SEM value is reported.
a,b,c,dRow means that do not have the same superscript differ, P < 0.05.