Item | Control casein | Levels of prickly pear peel | + SE | |||
---|---|---|---|---|---|---|
R1 (0%) | R2 (5%) | R3 (10%) | R4(15%) | |||
Biological value (BV) | 88.04c | 83.15d | 89.57c | 93.07b | 99.41a | 3.14* |
Tru digestibility (TD) | 96.70 | 96.87 | 97.89 | 98.85 | 99.23 | 2.56 NS |
Net protein utilization (NPU) | 84.88c | 83.28c | 85.80c | 95.36b | 98.76a | 2.84* |