Table 2. Steer productivity characteristics and carcass outcomes of Hanwoo steers fed with conventional (control; 25% roughage), 50% roughage (T50), and 70% roughage (T70) diets.
| Item | Control | T50 | T70 | SEM1) |
|---|---|---|---|---|
| Steer productivity characteristics | ||||
| Start weight (kg) | 536.9a | 521.5ab | 505.1b | 12.532 |
| End weight (kg) | 712.9a | 693.8b | 691.0b | 13.654 |
| Total weight gain (kg) | 176.0b | 172.3b | 185.9a | 4.347 |
| Daily weight gain (kg) | 0.84 | 0.82 | 0.89 | 0.039 |
| Feed conversion ratio | 17.90 | 16.45 | 15.25 | 0.762 |
| Meat yield characteristics | ||||
| Live weight (kg) | 712.9a | 693.8b | 691.0b | 13.654 |
| Carcass weight (kg) | 409.6a | 400.9a | 392.9b | 15.401 |
| Backfat thickness (mm) | 10.7 | 11.3 | 14.0 | 3.982 |
| Cross-sectional area of sirloin (cm2) | 78.1b | 84.4a | 79.3ab | 8.345 |
| Meat yield index | 65.0 | 65.7 | 63.5 | 2.701 |
| Meat yield grade (A:B:C, %) | 0:100:0 | 12:76:12 | 25:50:25 | - |
| Carcass grading characteristics | ||||
| Intramuscular fat | 5.7b | 6.4a | 6.0a | 1.996 |
| Meat quality grade (1++:1+:1:2,%) | 28:29:14:29 | 13:62:25:0 | 38:25:12:25 | - |
1)
n=6.
a,b
Values with different letters differ significantly (p<0.05).