Cervantes-Pahm, S. K. and H. H. Stein. 2011. Digestibility of GE and TDF in diets containing novel carbohydrates fed to growing pigs. J. Anim. Sci. 89(E-Suppl. 2):122 (Abstr.) Link to abstract (.pdf)

Almeida, F. N. and H. H. Stein. 2011. Standardized total tract digestibility of P in blood products fed to weanling pigs. J. Anim. Sci. 89(E-Suppl. 2):120 (Abstr.) Link to abstract (.pdf)

Petersen, G. I. and H. H. Stein. 2011. Determination of Lys and Trp requirements in 10 to 20 kg pigs. J. Anim. Sci. 89(E-Suppl. 2):100 (Abstr.) Link to abstract (.pdf)

Rojas, O. J. and H. H. Stein. 2011. Phosphorus and amino acid digestibility in fermented and conventional soybean meal fed to weanling pigs. J. Anim. Sci. 89(E-Suppl. 2):99 (Abstr.) Link to abstract (.pdf)

Lee, J. W., B. D. Keever, J. Killefer, F. K. McKeith, and H. H. Stein. 2011. Effects of corn germ, tallow, palm kernel oil, or glycerol on fat quality of pigs fed diets containing distillers dried grains with solubles. J. Anim. Sci. 89(E-Suppl. 2):98 (Abstr.) Link to abstract (.pdf)

Stein, H. H. 2011. Feeding distillers dried grains with solubles (DDGS) and other ethanol coproducts to swine. Pages 297-316 in Distiller's Grains: Production, Properties and Utilization. Liu, K. and K. Rosentrater, eds. CRC Press, Tailor and Francis Group, Boca Raton, FL. Link to full text (.pdf)

Distillers dried grains with solubles (DDGS) can be fed in swine diets at an inclusion rate of up to 30% without negatively affecting pig growth performance. However, DDGS contains high levels of polyunsaturated fatty acids (PUFA), which may promote deposition of unsaturated dietary fatty acids in adipose tissue. Consequently, inclusion of DDGS at more than 20% has been shown to result in increased fat iodine values (IV) and soft belly production.  The disadvantages of this decrease in fat quality include reduced shelf life, increased susceptibility to oxidative damage, and reduced belly sliceability.

An experiment was performed to determine if the addition of different sources of saturated fat would improve belly fat quality in pigs fed a DDGS-based diet. In addition, the hypothesis that the iodine value product (IVP) of the diet can be used to predict backfat IV and belly fat IV of pigs fed diets containing DDGS was tested.

By Dr. Hans H. Stein

July, 2011

We are now at a time of the year when most of the small grain crops have been harvested, but we are still a few month away from having new-crop corn available. In many areas of the Midwest, it is, therefore, possible to purchase wheat, barley, or oats at a price that is less than that of corn. In many cases, this is an opportunity to reduce diet costs. With corn trading close to 7 dollars per bushel, there may be opportunities for reducing diet costs if small grains are available.

By Dr. Hans H. Stein

May, 2011

In the April newsletter, opportunities for using high-fiber feed ingredients in diets fed to pigs were discussed and recommended inclusion rates for a number of high-fiber ingredients were provided. It is assumed that if high-fiber ingredients are included in the diets at the recommended inclusion rates, pig growth performance will not be affected. There are, however, other consequences of using high-fiber ingredients that also need to be considered before these ingredients are included in the diets.