Table 4.
Nutritional impacts of dietary Zn/Cu loaded in montmorillonite (Mnt) and triazine hydrazone (Thz) complexes on the relative weights of carcass cuts and internal organs of weaned V-line rabbits aged 12 weeks.
| Parameters | Type of Zn and Cu Supplementation b | SEM | p-Value | |||
|---|---|---|---|---|---|---|
| Control | Zn/CuSO4 | Zn/Cu–Mnt | Zn/Cu–Thz | |||
| Live body weight (g) | 1341.62 c | 1436.81 c | 1593.60 b | 1836.40 a | 49.25 | 0.001 |
| Carcass rate (%) | 55.59 a | 50.07 ab | 48.16 b | 55.05 a | 1.87 | 0.021 |
| Adipose fat rate (%) | 1.64 ab | 1.81 a | 1.46 b | 1.53 b | 1.05 | 0.029 |
| Hind legs rate (%) | 9.61 b | 10.34 b | 12.92 a | 10.19 b | 1.74 | 0.028 |
| Saddle rate (%) | 8.78 c | 10.44 b | 12.02 a | 9.89 bc | 1.44 | 0.001 |
| Fore legs rate (%) | 6.37 | 6.46 | 6.89 | 6.61 | 0.33 | 0.712 |
| Thoracical neck rate (%) | 6.50 b | 6.65 b | 8.04 a | 7.12 ab | 0.43 | 0.079 |
| Liver index (%) | 2.26 b | 3.75 a | 3.29 a | 3.19 a | 0.37 | 0.048 |
| Kidney index (%) | 0.99 | 1.06 | 0.96 | 0.90 | 0.04 | 0.127 |
| Spleen index (%) | 0.08 c | 0.12 bc | 0.18 a | 0.13 b | 0.01 | 0.001 |
| Lung index (%) | 1.88 a | 1.51 bc | 1.49 b | 1.43 b | 0.11 | 0.054 |
All data are expressed as the mean with SEM in same row; a, b, c letters indicate significant differences between means (p < 0.05). Rabbit sample/group, n = 5. The parameters rate and organ index were calculated as follows: parameters rate or organ index = (organ weight/living weight) × 100%. Zn/CuSO4: zinc and copper sulfate; Zn/Cu-Mnt: zinc and copper in loaded montmorillonite; Zn/Cu-Thz: zinc and copper in hydrazone complexes.