TABLE 1

Energy corrected milk, dry matter intake, and gross feed efficiency valuesa

LactationCowECMb (kg/day)DMI (kg/day)ECM/DMIc
EarlyMiddleLateEarlyMiddleLateEarlyMiddleLate
1st425541.341.541.619.423.225.92.131.791.61
426041.138.647.921.924.229.01.881.601.65
426135.637.136.820.422.626.51.751.641.39
426235.837.336.819.023.326.31.891.601.40
427338.138.327.618.221.920.82.091.751.33
427535.236.542.320.223.827.71.741.541.53
427625.431.731.313.119.219.71.941.651.59
427732.836.842.419.427.128.11.691.361.51
427834.930.136.916.817.622.22.071.711.66
428139.343.641.419.724.026.62.151.551.59
428235.234.937.619.723.427.51.991.821.55
428833.134.438.616.322.524.82.031.531.56
429438.739.034.317.519.320.02.222.021.71
429735.939.944.717.925.028.72.011.591.56
2nd425547.552.642.119.529.327.72.431.801.52
426068.749.940.033.430.731.02.061.621.29
426165.556.230.331.233.531.82.101.680.95
426255.757.251.327.230.125.32.051.902.03
427353.951.042.925.825.925.32.091.971.70
427543.340.16.623.429.624.41.851.360.27
427641.944.536.820.522.128.22.042.011.30
427748.339.334.325.933.029.01.871.191.18
427851.737.332.028.127.519.71.841.361.62
428156.048.435.627.826.928.22.021.801.26
428253.347.241.625.930.329.82.061.551.40
428855.052.840.129.127.125.11.891.951.60
429441.345.735.119.728.223.32.091.621.51
429763.055.240.232.531.532.21.941.751.25
  • a Stage of lactation is early (76 to 82 DIM), middle (151 to 157 DIM), or late (251 to 257 DIM).

  • b ECM is determined as follows: kilograms of milk × [0.0327 + (0.1296 × percent fat) + (0.072 × percent true protein)].

  • c ECM/DMI = GFE.