Lee

Effect of dietary calcium on growth performance of growing pigs

S. A. Lee, Vanessa Lagos, and Hans H. Stein. 2018. Effect of dietary calcium on growth performance of growing pigs. Pages 173 - 184. XXXIV Specialization Course FEDNA, Madrid, Nov. 22 - 23, 2018. Link to full text (.pdf)

 

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Energy concentrations in distillers dried grains with solubles containing different fat concentrations and the effect of corn oil addition on energy concentrations in diets fed to growing pigs

Kil, D. Y., J. W. Lee, D. M. D. L. Navarro, and H. H. Stein. 2013. Energy concentrations in distillers dried grains with solubles containing different fat concentrations and the effect of corn oil addition on energy concentrations in diets fed to growing pigs. J. Anim. Sci 91(E-Suppl. 2):582-583 (Abstr.) Link to abstract

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Carcass fat quality of pigs is not improved by adding corn germ, beef tallow, palm kernel oil, or glycerol to finishing diets containing distillers dried grains with solubles

Lee, J. W., D. Y. Kil, B. D. Keever, J. Killefer, F. K. McKeith, R. C. Sulabo, and H. H. Stein. 2013. Carcass fat quality of pigs is not improved by adding corn germ, beef tallow, palm kernel oil, or glycerol to finishing diets containing distillers dried grains with solubles. J. Anim. Sci. 91:2426-2437. Link to full text (.pdf)

Up to 30% corn germ may be included in diets fed to growing–finishing pigs without affecting pig growth performance, carcass composition, or pork fat quality

Lee, J. W., F. K. McKeith, and H. H. Stein. 2012. Up to 30% corn germ may be included in diets fed to growing–finishing pigs without affecting pig growth performance, carcass composition, or pork fat quality. J. Anim. Sci. 90:4933-4942. Link to full text (.pdf)

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Effect of fat concentration in distillers dried grains with solubles on concentrations of digestible and metabolizable energy when fed to growing pigs

Distillers dried grains with solubles, or DDGS, is a co-product of the rapidly growing ethanol industry. DDGS has been increasingly used for swine diets because of its affordability and nutritive value. Corn DDGS is high in energy, amino acids, and digestible phosphorus.

In the last few years, more ethanol plants have started  to use centrifugation to extract oil from DDGS for use in the production of biodiesel. The resulting DDGS products contain less fat than conventional DDGS. Reduced-fat DDGS products would be expected to have decreased digestible (DE) and metabolizable (ME) energy concentrations compared with  conventional DDGS, but energy values for these products have not yet been reported.

An experiment was conducted to determine the concentrations of DE and ME in three sources of distillers dried grains with solubles (DDGS) containing different fat concentrations. In addition, the effect of supplementing diets containing reduced-fat DDGS products with corn oil to increase DE and ME concentrations was determined.

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Inclusion of corn germ and corn distillers dried grains with solubles in diets fed to growing-finishing pigs

Lee, J. W. and H. H. Stein. 2012. Inclusion of corn germ and corn distillers dried grains with solubles in diets fed to growing-finishing pigs. J. Anim. Sci. 90(E-Suppl. 2):110 (Abstr.) Link to abstract (.pdf)

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Energy concentration and phosphorus digestibility in whey powder, whey permeate, and low-ash whey permeate fed to weanling pigs

Kim, B. G., J. W. Lee, and H. H. Stein. 2012. Energy concentration and phosphorus digestibility in whey powder, whey permeate, and low-ash whey permeate fed to weanling pigs. J. Anim. Sci. 90:289-295. Link to full text (.pdf)

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Up to 30% corn germ may be included in diets fed to growing-finishing pigs without affecting pig growth performance, carcass composition or pork fat quality

Corn germ is a co-product of the wet milling industry that is available for use in swine diets to partially replace the more expensive corn grain. Results of arecent experiment indicated that including 15% corn germ in diets containing 30% DDGS had no negative effects on pig growth performance, carcass composition, or pork fat quality. However, it is not known if greater quantities of corn germ may be included in diets fed to growing-finishing pigs. Therefore, we conducted an experiment to determine if greater levels of corn germ may be included in diets fed to growing-finishing pigs without negatively affecting growth performance, carcass characteristics, muscle and fat quality, or belly quality. The experiment also determined if the presence of DDGS in the diets influences the responses to the inclusion of corn germ.

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Energy concentration and phosphorus digestibility in whey powder, whey permeate, and low-ash whey permeate fed to weanling pigs

Whey powder is a co-product of the cheese industry, and consists primarily of lactose and protein. The inclusion of whey powder in weanling pig diets improve growth performance; this is believed to be due to the lactose fraction. Because of the demand for whey protein from the human food industry, the protein is sometimes extracted from whey powder. The resulting product is called whey permeate.

Few values for digestible and metabolizable energy in whey permeate have been reported. In addition, the standardized total tract digestibility (STTD) of phosphorus in these ingredients has not been reported. Therefore, two experiments were conducted: the first, to determine the concentrations of digestible and metabolizable energy in whey powder, whey permeate, and low-ash whey permeate; and the second, to determine the apparent and standardized total tract digestibility of phosphorus in the same ingredients.

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Effects of including tallow, palm kernel oil, corn germ, or glycerol to diets containing distillers dried grains with solubles on pork fat quality of growing-finishing pigs

Lee, J. W., B. D. Keever, J. Killefer, F. K. McKeith, and H. H. Stein. 2011. Effects of including tallow, palm kernel oil, corn germ, or glycerol to diets containing distillers dried grains with solubles on pork fat quality of growing-finishing pigs. J. Anim. Sci. 89(E-Suppl. 1):679 (Abstr.) Link to abstract (.pdf)

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Effects of corn germ, tallow, palm kernel oil, or glycerol on fat quality of pigs fed diets containing distillers dried grains with solubles

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)

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Negative effects of distillers dried grains with solubles (DDGS) on fat quality of pigs are not ameliorated by addition of corn germ, tallow, palm kernel oil, or glycerol to finishing diets

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.

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Energy concentration and phosphorus digestibility in milk products fed to weanling pigs

Kim, B. G., J. W. Lee, and H. H. Stein. 2010. Energy concentration and phosphorus digestibility in milk products fed to weanling pigs. J. Anim. Sci. 88(E-Suppl. 3):90 (Abstr.) Link to abstract (.pdf)

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