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Table 2 Pearson correlation coefficient between chemical composition and feed digestibility

From: Feed nutritional value of brewers’ spent grain residue resulting from protease aided protein removal

Item

1

2

3

4

5

6

7

1. DMD, %

       

2. NDFD, %

0.16

      

3. HCD, %

−0.11

0.87**

     

4. NDF, % DM

−0.49**

0.50**

0.82**

    

5. HC, % DM

−0.50**

0.51**

0.83**

0.99**

   

6. Total FA, % DM

−0.06

0.37*

0.62**

0.70**

0.68**

  

7. NFC, % DM

0.75**

−0.36*

−0.60**

−0.81**

− 0.82**

− 0.25*

 

8. CP, % DM

0.12

− 0.47**

− 0.76**

− 0.87**

− 0.84**

−0.88**

0.41**

  1. DMD dry matter digestibility, NDF neutral detergent fibre, NDFD neutral detergent fibre digestibility, FA ferulic acid, HC hemicellulose, HCD hemicellulose digestibility, NFC non-fibre carbohydrate, CP crude protein
  2. *P < 0.05, **P < 0.01