Table 5.
Least squares means (±SE*) of for body weight, carcass traits and carcass prices of Holstein steers by yield grade
| Trait** | Yield grade1
|
||
|---|---|---|---|
| A (N = 3,948) | B (N = 53,168) | C (N = 19,698) | |
| BWT | 566.70±7.64c | 640.01±7.59b | 703.05±7.60a |
| CWT | 311.32±4.67c | 356.43±4.64b | 398.95±4.64a |
| DP | 55.15±0.22c | 55.77±0.22b | 56.66±0.22a |
| QGI | 67.92±0.13a | 65.41±0.13b | 62.02±0.13c |
| EMA | 73.24±0.93a | 69.38±0.93b | 68.60±0.93c |
| BF | 3.70±0.19c | 5.17±0.19b | 8.81±0.19a |
| MS | 1.19±0.14c | 1.66±0.14b | 2.15±0.14a |
| CUP | 7,408.97±180.65c | 8,036.36±179.47b | 8,274.30±179.77a |
| CSP | 2,206.24±92.95c | 2,829.38±92.35b | 3,302.72±92.50a |
*
SE = Standard error of mean.
**
BWT = Body weight at slaughter day; CWT = Carcass weight; DP = Dressing percent; QGI = Quantity grade index; EMA = Eye muscle area at 13th rib; BF = Backfat thickness; MS = Marbling score; CUP = Carcass unit price at auction in Korean won; CSP = Total carcass sell price in thousand Korean won.
1
Means differed significantly at p<0.05.