Item | Parity | No. | SID-Lys:ME ratio, g/Mcal | Â | P-value | |||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
 |  |  | 2.1 | 2.4 | 2.7 | 3.0 | 3.3 | Mean2 | SEM | Treat | Linear | Quadratic |
Feed intake, kg/d | 1 | 31 | 5.40 | 5.42 | 5.43 | 5.36 | 5.41 | 5.40x | 0.12 | 1.00 | 0.89 | 0.98 |
 | 2 | 32 | 5.53 | 5.51 | 5.50 | 5.48 | 5.49 | 5.50x | 0.12 | 1.00 | 0.80 | 0.90 |
 | 3+ | 87 | 5.75 | 5.62 | 5.66 | 5.74 | 5.78 | 5.71y | 0.07 | 0.42 | 0.38 | 0.19 |
 | Total1 | 150 | 5.67 | 5.60 | 5.61 | 5.64 | 5.67 | 5.64 | 0.06 | 0.80 | 0.58 | 0.33 |
Lysine intake, g/d | 1 | 31 | 42.68d | 48.20c | 54.29b | 57.86b | 65.41a | 53.70x | 3.32 | < 0.01 | < 0.01 | 0.85 |
 | 2 | 32 | 43.67e | 49.00d | 54.96c | 59.20b | 66.39a | 54.64x | 3.42 | < 0.01 | < 0.01 | 0.89 |
 | 3+ | 87 | 45.44e | 50.03d | 56.62c | 62.03b | 69.91a | 56.81y | 2.19 | < 0.01 | < 0.01 | 0.39 |
 | Total1 | 150 | 44.95e | 49.88d | 56.14c | 60.91b | 68.54a | 56.08 | 1.64 | < 0.01 | < 0.01 | 0.62 |