Table 2.
Analyzed composition (as fed basis) and color of corn distillers dried grains with solubles
| Items | Full-oil DDGS1 | De-oiled DDGS1 | |||
|---|---|---|---|---|---|
|
|
|
||||
| 1 | 2 | 3 | 4 | 5 | |
| Ingredient | |||||
| DM (%) | 89.96 | 88.80 | 87.89 | 87.67 | 88.69 |
| GE (kcal/kg) | 4,589 | 4,600 | 4,256 | 4,229 | 4,306 |
| CP (%) | 28.80 | 27.30 | 28.40 | 28.97 | 30.86 |
| Lys:CP ratio2 | 2.87 | 2.96 | 2.88 | 2.87 | 2.90 |
| EE (%) | 8.66 | 10.40 | 3.22 | 3.06 | 2.50 |
| ST (%) | 13.72 | 13.27 | 11.29 | 12.62 | 11.06 |
| CF (%) | 5.88 | 5.01 | 6.72 | 5.98 | 6.54 |
| NDF (%) | 31.42 | 28.72 | 38.57 | 35.09 | 36.09 |
| ADF (%) | 9.71 | 8.19 | 12.29 | 9.20 | 10.30 |
| HC3 (%) | 21.73 | 20.53 | 26.29 | 25.89 | 25.79 |
| Ca (%) | 0.08 | 0.12 | 0.04 | 0.04 | 0.03 |
| P (%) | 0.55 | 0.71 | 0.53 | 0.81 | 0.85 |
| Ash (%) | 4.33 | 4.94 | 4.59 | 4.79 | 4.65 |
| Essential AA (%) | |||||
| Arginine | 1.03 | 1.04 | 0.98 | 1.02 | 1.06 |
| Histidine | 0.79 | 0.75 | 0.75 | 0.75 | 0.79 |
| Isoleucine | 0.97 | 0.92 | 1.02 | 1.02 | 1.07 |
| Leucine | 3.59 | 3.29 | 3.69 | 3.61 | 3.69 |
| Lysine | 0.83 | 0.81 | 0.82 | 0.83 | 0.90 |
| Methionine | 0.45 | 0.44 | 0.52 | 0.52 | 0.47 |
| Phenylalanine | 1.41 | 1.32 | 1.45 | 1.46 | 1.53 |
| Threonine | 1.11 | 1.07 | 1.05 | 1.05 | 1.14 |
| Tryptophan | 0.16 | 0.17 | 0.17 | 0.18 | 0.20 |
| Valine | 1.46 | 1.38 | 1.35 | 1.35 | 1.45 |
| Nonessential AA (%) | |||||
| Alanine | 2.17 | 2.00 | 2.14 | 2.13 | 2.26 |
| Asparagine | 1.89 | 1.88 | 1.82 | 1.85 | 2.00 |
| Cysteine | 0.40 | 0.39 | 0.41 | 0.41 | 0.39 |
| Glutamine | 3.04 | 2.69 | 2.52 | 2.55 | 2.57 |
| Glycine | 1.08 | 1.06 | 0.98 | 1.03 | 1.13 |
| Proline | 2.51 | 2.26 | 2.42 | 2.38 | 2.39 |
| Serine | 3.81 | 3.46 | 3.73 | 3.72 | 3.88 |
| Tyrosine | 0.86 | 0.84 | 0.88 | 0.88 | 0.88 |
| Total AA (%) | 28.41 | 26.60 | 27.61 | 27.64 | 28.67 |
| Color4 | |||||
| L* | 47.89b | 45.61c | 51.04a | 47.56b | 45.44c |
| a* | 8.66c | 9.41b | 8.80c | 9.88b | 11.10a |
| b* | 35.33 | 34.78 | 35.47 | 34.85 | 35.53 |
DDGS, distillers dried grains with solubles; DM, dry matter; GE, gross energy; CP, crude protein; EE, ether extract; ST, starch; CF, crude fiber; NDF, neutral detergent fiber; ADF, acid detergent fiber; HC, hemicellulose; AA, amino acids.
Sources of corn distillers dried grains with solubles are described in Table 1.
Calculated by expressing the concentration of Lysine in each ingredient as a percentage of the concentration of CP.
HC = NDF − ADF.
Mean of 10 observations. L*, lightness of sample; 0, black; 100, white; greater values of a* and b* indicate greater degree of redness and yellowness, respectively.
Means in the same row with different superscripts are significantly different (p<0.01).