Variable | Experiment 1 | Experiment 2 | |||
---|---|---|---|---|---|
Controls | db cAMP | Controls | db cAMP | ||
Final weight (kg) | 72.24±2.46 | 73.64±1.77 | 105.93±2.06 | 105.11±1.72 | |
Average daily feed intake (kg) | 2.32±0.15 | 2.25±0.17 | 2.85±0.08 | 2.72±0.10 | |
Average daily gain (kg) | 0.73±0.05 | 0.74±0.04 | 0.79±0.03 | 0.76±0.04 | |
F/G | 3.35±0.03 | 3.04±0.14 | 3.69±0.16 | 3.60±0.12 | |
Dressing percentage (%) | 73.80±1.25 | 73.40±0.56 | 78.22±0.87 | 77.84±0.76 | |
Longissimus muscle area (cm2) | 34.10±2.82 | 35.40±1.12 | 55.45±3.59 | 61.35±4.64 | |
Lean percentage (%) | 62.02±1.51 | 64.73±0.58 | 61.75±0.75 | 63.80±0.85 | |
Fat percentage (%)# | 19.55±1.06 | 16.41±0.32* | 23.34±1.14 | 20.52±1.19* | |
Backfat thickness (cm) | |||||
First rib# | 3.70±0.19 | 2.89±0.32* | 3.45±0.26 | 2.84±0.33 | |
Tenth rib | 1.67±0.11 | 1.33±0.16 | 1.89±0.21 | 1.56±0.33 | |
Last rib | 1.59±0.15 | 1.20±0.12 | 1.61±0.16 | 1.30±0.16 | |
Average backfat thickness# | 2.32±0.15 | 1.80±0.10** | 2.31±0.09 | 1.90±0.08** | |
Drop loss (%) (24 h) | 2.42±0.10 | 2.60±0.09 | 2.45±0.19 | 2.37±0.13 | |
Intramuscular fat (%) | 2.01±0.34 | 2.12±0.49 | 2.04±0.55 | 2.36±0.97 | |
Shear force (48 h) | 38.16±2.8 | 34.26±2.0 | 43.42±2.0 | 35.56±1.9 | |
pH | 45 min | 6.38±0.13 | 6.41±0.07 | 6.28±0.14 | 6.52±0.05 |
 | 24 h | 5.31±0.04 | 5.43±0.04 | 5.23±0.02 | 5.39±0.03 |
L* | 45 min | 50.64±1.0 | 49.65±0.6 | 46.56±0.4 | 45.40±1.0 |
 | 24 h | 56.23±2.0 | 54.43±0.6 | 54.51±0.7 | 54.08±0.9 |
a* | 45 min | 16.83±0.6 | 14.94±0.3* | 14.08±0.6 | 15.08±0.4 |
 | 24 h | 17.19±0.6 | 15.46±0.5* | 16.48±0.5 | 17.12±0.5 |
b* | 45 min | 3.89±0.2 | 3.64±0.4 | 3.28±0.3 | 2.94±0.1 |
 | 24 h | 7.02±0.4 | 6.33±0.3 | 8.04±0.6 | 8.21±1.0 |