Table 1.
The effects of short-term (6 day) BA or GH treatment of lambs at 60 or 120 days of age on lamb carcass characteristics
| D60 | D120 | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Trait | CO | BA | GH | s.e.d. | P-value | CO | BA | GH | s.e.d. | P-value |
| n | 11 | 10 | 10 | 11 | 10 | 10 | ||||
| BW (kg) | 23.9 | 23.9 | 24.5 | 1.4 | 0.863 | 43.0 | 46.4 | 44.3 | 1.6 | 0.122 |
| Liver (g) | 475 | 460 | 567 a | 32 | 0.005 | 928 | 926 | 1101 a | 55 | 0.004 |
| Muscle weights (g) | ||||||||||
| Longissimus dorsi | 305 | 306 | 327 | 27 | 0.655 | 592 | 667 | 632 | 35 | 0.108 |
| Supraspinatus | 53.5 | 55.2 | 55.9 | 3.9 | 0.812 | 98.5 | 116.4 a | 98.0 | 6.3 | 0.009 |
| Semitendinosus | 63.3 | 67.1 | 65.0 | 4.3 | 0.667 | 112.4 | 131.2 a | 120.4 | 6.6 | 0.023 |
| Vastus lateralis | 85.4 | 88.0 | 89.3 | 6.3 | 0.815 | 164.5 | 180.3 | 163.8 | 7.5 | 0.058 |
| Vastus intermedius | 28.5 | 27.5 | 30.9 | 2.3 | 0.331 | 51.7 | 55.7 | 52.4 | 3.6 | 0.487 |
BA=β agonist; GH=growth hormone; CO=control.
a
Significantly different to control (Dunnett’s test; P<0.05).