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

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