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Table 5 Correlation coefficients between chemical characteristics, physical characteristics and energy values of the 100 corn samples

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

Item

DE

ME

Crude protein

Ether extract

ADF

NDF

Ash

Gross energy

Starch

Bulk weight

1,000 kernel weight

DE

1.00

          

ME

0.95**

1.00

         

Crude protein

−0.15

−0.06

1.00

        

Ether extract

0.44**

0.29**

−0.28

1.00

       

ADF

−0.05

−0.06

−0.05

0.33

1.00

      

NDF

−0.32**

−0.27**

0.14

−0.02

0.68

1.00

     

Ash

−0.29*

−0.28**

0.22

−0.27

−0.11

0.17

1.00

    

Gross energy

0.25**

0.23

−0.06

0.14

−0.28

0.19

0.07

1.00

   

Starch

0.38**

0.32*

−0.03

0.03

0.13

0.11

−0.12

0.06

1.00

  

Bulk weight

0.05

0.03

0.03

0.15

−0.16

0.13

0.22

0.05

−0.13

1.00

 

1,000 kernel weight

0.11

0.06

0.25

0.02

−0.06

−0.13

0.08

0.14

−0.11

0.42

1.00

  1. *, **, P < 0.05, P < 0.01, respectively.