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Table 1 Chemical and physical characteristic characteristics of 100 corn samples

From: Predicting corn digestible and metabolizable energy content from its chemical composition in growing pigs

Item Mean SD* CV Minimum Maximum
Chemical composition, % of DM
Crude protein 9.69 0.50 5.16 7.78 11.03
Ash 1.36 0.14 10.07 0.99 1.79
Calcium 0.03 0.01 26.67 0.01 0.03
Phosphorus 0.25 0.03 11.20 0.18 0.32
NDF 11.13 0.93 8.35 9.56 17.36
ADF 2.29 0.23 10.04 1.86 2.95
Ether extract 3.65 0.54 14.79 2.04 4.81
Starch 72.77 3.32 4.56 53.46 79.80
Gross energy, kcal/kg of DM 4,447 44.96 1.01 4,357 4,537
Physical characteristic      
Bulk weight, g/L 698.68 25.91 3.71 573.62 752.35
1,000 kernel weight, g 325.48 41.16 12.64 220.20 411.10
  1. *SD, Standard deviation; CV, Coefficient of variation.