Quality index | Diets | |||||
---|---|---|---|---|---|---|
AE0 | AE15 | AE30 | AE45 | NCD | RD | |
Carcass nitrogen (g) (CN) | 7.71 ± 0.34c | 7.39 ± 0.29c | 7.66 ± 0.51c | 8.14 ± 0.21c | 6.01 ± 0.43a | 10.42 ± 0.83b |
Fecal nitrogen (g) (FN) | 0.62 ± 0.16b | 0.82 ± 0.19b | 0.61 ± 0.08b | 0.59 ± 0.10b | 0.36 ± 0.02a | 0.51 ± 0.25ab |
Carcass weight (g) (CW) | 115.09 ± 20.63ab | 106.42 ± 11.51ab | 112.43 ± 38.38ab | 126.21 ± 29.52ab | 85.55 ± 4.40a | 142.68 ± 39.39b |
Fecal dry weight (g) (FDW) | 28.50 ± 1.38b | 28.58 ± 3.85b | 25.67 ± 3.88ab | 26.83 ± 5.92ab | 23.33 ± 0.76a | 20.67 ± 9.07a |
Protein efficiency ratio (PER) | 2.03 ± 0.23c | 2.16 ± 0.05c | 2.15 ± 0.45c | 2.28 ± 0.35c | 1.11 ± 0.24a | 2.67 ± 0.37b |
Net protein utilization (NPU) | 68.21 ± 4.89b | 69.73 ± 5.56b | 66.29 ± 18.97b | 74.07 ± 4.83a | – | 80.07 ± 7.26a |
Apparent digestibility (AD) | 85.46 ± 3.09c | 82.90 ± 4.51c | 85.71 ± 2.37c | 86.80 ± 2.18c | 69.59 ± 1.0a | 92.63 ± 2.57b |
True digestibility (TD) | 94.04 ± 3.42a | 91.97 ± 4.63a | 94.15 ± 2.13a | 94.86 ± 2.21a | – | 97.82 ± 2.32a |
Biological value (BV) | 72.53 ± 3.68a | 75.86 ± 9.40a | 70.36 ± 9.52a | 78.04 ± 3.48a | – | 82.17 ± 5.78a |