Table 2.
Effect of housing systems and Se, Zn, and vitamin E supplementation on results of fattening and the carcass quality of lamb
| Item | Group1 | SEM2 | p-value3 | |||
|---|---|---|---|---|---|---|
|
|
|
|||||
| C | S | G | C vs S | C vs G | ||
| Body weight, start (kg) | 14.1 | 14.2 | 14.2 | 0.59 | 0.945 | 0.916 |
| Body weight, final (kg) | 27.5 | 28.4 | 23.7 | 0.71 | 0.463 | 0.002 |
| ADG during fattening (g/d) | 223 | 237 | 159 | 10.8 | 0.331 | 0.002 |
| Half carcass weight (kg) | 5.9 | 6.19 | 4.33 | 0.22 | 0.308 | 0.000 |
| Pelvic limb deepness (cm) | 20.4 | 20.2 | 18.5 | 0.29 | 0.949 | 0.000 |
| Pelvic limb tightness index (%) | 145.1 | 145.9 | 126.7 | 1.17 | 0.816 | 0.000 |
| Pelvic limb weight (g) | 1,990 | 2,111 | 1,514 | 328 | 0.208 | 0.000 |
| Loin - rib weight (g) | 851 | 896 | 554 | 8.59 | 0.878 | 0.000 |
| Anterior - rib weight (g) | 439 | 472 | 319 | 9.18 | 0.155 | 0.000 |
| Valuable cuts (g) | 3,280 | 3,478 | 2387 | 48.5 | 0.197 | 0.000 |
| Content of valuable cuts (%) | 55.7 | 56.2 | 55.2 | 0.13 | 0.345 | 0.133 |
| Thorasic limb wright (g) | 1,089 | 1,139 | 852 | 166 | 0.337 | 0.000 |
| Neck weight (g) | 477 | 479 | 374 | 13.24 | 0.942 | 0.000 |
| Breast weight (g) | 946 | 988 | 657 | 19.6 | 0.427 | 0.000 |
| Loin eye area (cm2) | 11.45 | 11.84 | 8.85 | 0.22 | 0.432 | 0.000 |
| Fat over the eye loin (mm) | 1.37 | 1.57 | 1.11 | 0.01 | 0.398 | 0.164 |
| Kidney with perirenal fat (g) | 111 | 120 | 69 | 2.73 | 0.288 | 0.000 |
| Meat in pelvic limb (%) | 77.2 | 77.1 | 78.5 | 0.30 | 0.848 | 0.079 |
| Fat in pelvic limb (%) | 9.6 | 9.9 | 6.2 | 0.29 | 0.637 | 0.000 |
| Bones in pelvic limb (%) | 13.2 | 13.0 | 15.2 | 0.22 | 0.658 | 0.000 |
1
Group C = Indoor with no supplement, n = 19; S = Indoor with supplement, n = 23; G = Outdoor with no supplement, n = 30.
2
Standard error of the mean.
3
Supplementation effect C vs S and the housing effect C vs G.