Table 6.
Fabricated beef cuts presented as percentage of HCW of beef cows finished over varied DOF and fed RH
| DOF1 | Days on RH2 | P-values | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Item,3 % | 28 | 42 | 56 | 0 | 28 | SEM4 | Linear1 | Quadratic1 | RH | DOF × RH |
| 109E, Rib eye roll | 6.00 | 6.00 | 6.15 | 6.11 | 5.99 | 0.08 | 0.46 | 0.67 | 0.48 | 0.33 |
| 120, Flats | 8.31 | 8.17 | 8.00 | 8.23 | 8.09 | 0.10 | 0.23 | 0.95 | 0.53 | 0.18 |
| 167, Knuckle | 8.20 | 7.95 | 7.83 | 8.02 | 7.97 | 0.11 | 0.19 | 0.79 | 0.85 | 0.15 |
| 168, Inside round | 13.91 | 13.25 | 13.23 | 13.68 | 13.26 | 0.16 | 0.09 | 0.35 | 0.19 | 0.36 |
| 171C, Eye round | 3.74 | 3.63 | 3.48 | 3.65 | 3.58 | 0.05 | 0.04 | 0.83 | 0.44 | 0.18 |
| 175, Strip loin | 6.45 | 6.55 | 6.41 | 6.53 | 6.41 | 0.09 | 0.86 | 0.52 | 0.50 | 0.38 |
| 182, Sirloin top butt | 12.87 | 12.58 | 12.25 | 12.77 | 12.36 | 0.15 | 0.10 | 0.95 | 0.16 | 0.22 |
| 189, Tender loin | 3.74 | 3.59 | 3.53 | 3.64 | 3.60 | 0.05 | 0.06 | 0.63 | 0.71 | 0.61 |
1Cows were finished for a period of 28, 42, and 56 d before slaughter.
2Treatment diets were formulated to contain no RH (0 d) or RH (400 mg per cow per day; Actogain 45; Zoetis, Parsippany, NJ) for the final 28 d before slaughter.
3Numbers denote the IMPS.
4Pooled standard error of treatment means (days on RH, n = 24 pens per main-effect mean; DOF, n = 16 pens per main-effect mean).