Items | W LP | C + W LP | C LP | P + W LP | P LP | SEM1 | P-value |
---|---|---|---|---|---|---|---|
Average daily feed intake, g/d | 1040 | 1067 | 1070 | 1035 | 1048 | 35 | 0.941 |
Dietary N intake, g/d | 21.64 | 22.36 | 22.78 | 21.66 | 22.22 | 1.41 | 0.947 |
Urinary N excretion, g/d | 2.05a | 1.37b | 2.17a | 1.61ab | 1.91a | 0.13 | 0.018 |
Fecal N excretion, g/d | 4.26 | 4.25 | 4.39 | 4.73 | 4.50 | 0.25 | 0.743 |
Total N excretion, g/d | 6.31a | 5.62b | 6.56a | 6.34a | 6.41a | 0.20 | 0.046 |
Retention of N, g/d | 15.33 | 16.74 | 16.22 | 15.32 | 15.81 | 0.78 | 0.342 |
Total N excretion/intake of N, % | 29.17 | 25.13 | 28.80 | 29.26 | 28.84 | 1.75 | 0.390 |
Urinary N excretion/N excretion, % | 32.48a | 24.37b | 33.08a | 25.39ab | 29.80ab | 2.12 | 0.050 |
Fecal N excretion/N excretion, % | 67.52b | 75.63a | 66.92b | 74.61ab | 70.20ab | 2.42 | 0.050 |
Apparent biological value2, % | 88.20b | 92.44a | 88.20b | 90.49ab | 89.22ab | 1.25 | 0.043 |
Protein efficiency of utilization3, % | 70.79 | 74.76 | 71.16 | 70.86 | 71.30 | 3.42 | 0.269 |