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Table 7 Most effective prediction equations of ME (kcal/kg; DM) based on chemical variables (% or kcal/kg; DM) of the corn samples

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

No. Equation R2 RSD P-value
5 ME = 4190.19 – (19.56 × NDF) 0.22 44 <0.01
6 ME = 4664.04 – (17.74 × NDF) – (310.93 × Ash) 0.33 40 <0.01
7 ME = 4464.24 + (20.15 × Ether extract) – (17.84 × NDF) – (233.72 × Ash) 0.44 39 <0.01
8 ME = 4289.74 + (20.02 × Crude protein) + (22.47 × EE) – (18.40 × NDF) – (245.20 × Ash) 0.49 35 <0.01
9 ME = −213.69 + (1.02 × DE) 0.79 23 <0.01
10 ME = 362.67 + (0.95 × DE) – (193.59 × Ash) 0.85 19 <0.01
11 ME = 671.58 + (0.89 × DE) – (5.57 × NDF) – (191.39 × Ash) 0.87 18 <0.01