Table 1. Nutrient composition of ethanol coproducts.

Nutrient

Dried Distillers Grains

Dried Distillers Grains Plus Solubles

Modified Wet Distillers Grains Plus Solubles

Wet Distillers Grains Plus Solubles

Condensed Distillers Solubles

DM, %

88 to 90

88 to 90

50

25 to 35

23 to 45

 

DM Basis

TDN, %

77 to 88

85 to 90

70 to 110

70 to 110

75 to 120

NEm, Mcal/cwt

89 to 100

98 to 100

90 to 110

90 to 110

100 to 115

NEg, Mcal/cwt

67 to 70

68 to 70

70 to 80

70 to 80

80 to 93

CP, %

25 to 35

25 to 32

30 to 35

30 to 35

20 to 30

DIP, % CP

40 to 50

43 to 53

45 to 53

45 to 53

80.0

UIP, % CP

50 to 60

47 to 57

47 to 57

47 to 57

20.0

Fat, %

8 to 12

8 to 12

12 to 15

10 to 18

9 to 25

Calcium, %

0.11 to 0.20

0.10 to 0.20

0.02 to 0.03

0.02 to 0.03

0.03 to 0.17

Phosphorus, %

0.40 to 1.15

0.40 to 0.80

0.50 to 1.42

0.50 to 0.80

0.49 to 1.90

Potassium, %

0.49 to 1.08

0.87 to 1.33

0.70 to 1.00

0.50 to 1.00

1.75 to 2.25

Sulfur, %

0.46 to 0.65

0.37 to 1.12

0.38 to 1.20

0.40 to 1.20

0.37 to 1.19

Table adapted from:

1) Stock et al. 1995. Average Composition of Feeds Used in Nebraska. G1048. www.ianr.unl.edu/pubs/beef/G1048.pdf

2) Tjardes and Wright. 2002. Feeding Corn Distillerís Co-Products to Beef Cattle. South Dakota State University. ExEx. 2036.

3) NRC. 2001. Nutrient Requirements of Dairy Cattle.

4) Iowa Renewable Fuels Association. www.iowarfa.org/ethanol_coproducts.php . Accessed June 19, 2007.

The analyses given in this publication are a range of published values and regionally available laboratory analyses. Products vary and this may not represent what a particular plant is producing at any given time.

DM=dry matter, TDN=total digestible nutrients, NE=net energy, CP= crude protein,

DIP=degradable intake protein, UIP=undegradable intake protein (bypass protein)