By Dr. Hans H. Stein

March 2010

Many companies that are producing DDGS have started to centrifuge or skim off the fat from the DDGS. These companies then sell the fat for biodiesel production at a price that is much greater than what they can usually obtain for DDGS. The consequence of this practice is that the concentration of fat in DDGS is reduced from 10 to 11% in conventional DDGS to between 6 and 8 % in the centrifuged low-fat DDGS. This DDGS has a reduced concentration of energy and has, therefore, also a reduced value when fed to livestock. Conventional DDGS with 10 to 11% fat has a concentration of digestible energy that is similar to that in corn. However, if the concentration of fat in DDGS is reduced by 3 to 5% then the energy value of that product is reduced considerably.

Stein, H. H., T. E. Sauber, D. W. Rice, M. A. Hinds, B. L. Smith, G. Dana, D. N. Peters, and P. Hunst. 2009. Growth performance and carcass composition of pigs fed corn grain from DAS-Ø15Ø7-1 (Herculex I) hybrids. Prof. Anim. Scientist 25:689-694. Link to full text (.pdf)

Boucher, S. E., S. Calsamiglia, C. M. Parsons, H. H. Stein, M. D. Stern, P. S. Erickson, P. L. Utterback, and C. G. Schwab. 2009. Intestinal digestibility of amino acids in rumen undegraded protein estimated using a precision-fed rooster bioassay: I. Soybean meal and SoyPlus. J. Dairy Sci. 92:4489-4498. Link to full text (.pdf)

Stein, H. H., S. P. Connot, and C. Pedersen. 2009. Energy and nutrient digestibility in four sources of distillers dried grains with solubles produced from corn grown within a narrow geographical area and fed to growing pigs. Asian-Austr. J. Anim. Sci. 22:1016-1025. Link to full text (.pdf)

Fall 2009

The current challenges in the feed market emphasize the need for continuing to search for ways to reduce feed costs. Some of the options that are available include the following:

Rojas, O. J., B. G. Kim, and H. H. Stein. 2009. Evaluation of fermented soybean meal in diets fed to weanling pigs. J. Anim. Sci. 87 (E-Suppl. 3):135 (Abstr.) Link to abstract (.pdf)

M. Song, M. L. L. Stewart, J. Barnes, J. A. Soares, B. R. Gramm, R. D. Nimmo, H. H. Stein, and J. E. Pettigrew. 2009. Effects of carbadox on microbial ecology in ileal digesta and feces of weanling pigs. J. Anim. Sci. 87 (E-Suppl. 3):107 (Abstr.) Link to abstract (.pdf)

Beaulieu, A. D. Allee, F. Ji., R. B. Hinson, D. Y. Kil, H. H. Stein, L. L. Stewart, J. E. Pettigrew, and J. F. Patience. 2009. Reduced dietary crude protein impacts growth performance, carcass nutrients and energy metabolism in growing and finishing pigs. J. Anim. Sci. 87 (E-Suppl. 3):100 (Abstr.) Link to abstract (.pdf)

Kil, D. Y., F. Ji, R. B. Hinson, A. D. Beaulieu, L. L. Stewart, G. L. Allee, J. F. Patience, J. E. Pettigrew, and H. H. Stein. 2009. Net energy of soybean oil and choice white grease in diets fed to growing or finishing pigs. J. Anim. Sci. 87 (E-Suppl. 3):99 (Abstr.) Link to abstract (.pdf)