Corn

Use of feed technology to improve the nutritional value of feed ingredients

Rojas, O. J. and H. H. Stein. 2015. Use of feed technology to improve the nutritional value of feed ingredients. Page 23 in Advances in Animal Nutrition in Australia, Armidale, New South Wales, Australia, October 26-28, 2015. (Abstr.) Link to abstract (.pdf)

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Effects of reducing the particle size of corn grain on the concentration of digestible and metabolizable energy and on the digestibility of energy and nutrients in corn grain fed to growing pigs

Rojas, O. J. and H. H. Stein. 2015. Effects of reducing the particle size of corn grain on the concentration of digestible and metabolizable energy and on the digestibility of energy and nutrients in corn grain fed to growing pigs. Livest. Sci. 181:187-193. Link to full text (.pdf)

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Comparative efficacy of xylanases on energy and nutrient digestibility in growing pigs fed corn- or wheat-based diets

Kiarie, E., L. F. Romero, S. Arent, R. Lorentsen, and H. H. Stein. 2015. Comparative efficacy of xylanases on energy and nutrient digestibility in growing pigs fed corn- or wheat-based diets. J. Anim. Sci. 93(Suppl. s3):225 (Abstr.) Link to abstract (.pdf)

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Carbohydrate composition and in vitro digestibility of dry matter and nonstarch polysaccharides in corn, sorghum, and wheat and coproducts from these grains

Jaworski, N. W., H. N. Lærke, K. E. Bach Knudsen, and H. H. Stein. 2015. Carbohydrate composition and in vitro digestibility of dry matter and nonstarch polysaccharides in corn, sorghum, and wheat and coproducts from these grains. J. Anim. Sci. 93:1103-1113. Link to full text (.pdf)

Effects of chemical, physical, or enzymatic treatments on concentration of digestible and metabolizable energy and on ATTD of energy, organic matter, and detergent fiber in distillers dried grains with solubles fed to growing pigs

Rojas, O. J. and H. H. Stein. 2015. Effects of chemical, physical, or enzymatic treatments on concentration of digestible and metabolizable energy and on apparent total tract digestibility of energy, organic matter, and detergent fiber in distillers dried grains with solubles fed to growing pigs. J. Anim. Sci. 93(Suppl. 2):135 (Abstr.) Link to abstract (.pdf)

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Effects of extrusion of corn and oats on the digestibility of energy and nutrients in diets fed to pigs

Liu, Y., O. J. Rojas, and H. H. Stein. 2015. Effects of extrusion of corn and oats on the digestibility of energy and nutrients in diets fed to pigs. J. Anim. Sci. 93(Suppl. 2):134-135 (Abstr.) Link to abstract (.pdf)

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Effects of extrusion of corn and oats on the digestibility of energy, crude protein, and fiber in diets fed to pigs

In extrusion, cereal grains are processed under conditions of heat and pressure. Like other types of heat treatment, extrusion may reduce the concentration of antinutritional factors. Extrusion also gelatinizes starch, improving its digestibility. Improved digestibility of starch should, in turn, lead to an increase in digestible energy. Extrusion has also been shown in some studies to solubilize the insoluble fraction of the fiber which would also increase fiber digestibility and digestible energy.

Corn is a high starch ingredient, while oats are high in fiber. An experiment was conducted to determine the effects of extruding corn and oats on the apparent total tract digestibility (ATTD) of energy and fiber when fed to growing pigs.

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Supplementation of organic and inorganic selenium to diets using grains grown in various regions of the United States with differing natural Se concentrations and fed to grower–finisher swine

Mahan, D. C., M. Azain, T. D. Crenshaw, G. L. Cromwell, C. R. Dove, S. W. Kim, M. D. Lindemann, P. S. Miller, J. E. Pettigrew, H. H. Stein, and E. van Heugten. 2014. Supplementation of organic and inorganic selenium to diets using grains grown in various regions of the United States with differing natural Se concentrations and fed to grower-finisher swine. J. Anim. Sci. 92:4991-4997. Link to full text (.pdf)

Different corn hybrids fed to growing pigs. II. Concentrations and digestibility of amino acids

Liu, Y., R. C. Sulabo, T. E. Sauber, and H. H. Stein. 2014. Different corn hybrids fed to growing pigs. II. Concentrations and digestibility of amino acids. J. Anim. Sci 92(E-Suppl. 2):668 (Abstr.) Link to abstract (.pdf)

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Different corn hybrids fed to growing pigs. I. Chemical composition, energy concentration, and digestibility of nutrients

Liu, Y., R. C. Sulabo, T. E. Sauber, and H. H. Stein. 2014. Different corn hybrids fed to growing pigs. I. Chemical composition, energy concentration, and digestibility of nutrients. J. Anim. Sci 92(E-Suppl. 2):667 (Abstr.) Link to abstract (.pdf)

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Amino acid digestibility in field peas, fish meal, corn, soybean meal, and soybean hulls

Mathai, J. K. and H. H. Stein. 2014. Amino acid digestibility in field peas, fish meal, corn, soybean meal, and soybean hulls. J. Anim. Sci 92(E-Suppl. 2):648 (Abstr.) Link to abstract (.pdf)

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Comparative digestibility of energy and nutrients and fermentability of dietary fiber in eight cereal grains fed to pigs

Cervantes-Pahm, S. K., Y. Liu, and H. H. Stein. 2014. Comparative digestibility of energy and nutrients and fermentability of dietary fiber in eight cereal grains fed to pigs. J. Sci. Food Agric. 94:841–849. Link to full text (.pdf)

Effects of reducing the particle size of corn on growth performance of weanling pigs

Rojas, O. J. and H. H. Stein. 2014. Effects of reducing the particle size of corn on growth performance of weanling pigs. J. Anim. Sci. 92(Suppl. 2):158 (Abstr.) Link to abstract (.pdf)

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Effects of reducing the particle size of corn on growth performance and carcass characteristics of growing-finishing pigs

Rojas, O. J. and H. H. Stein. 2014. Effects of reducing the particle size of corn on growth performance and carcass characteristics of growing-finishing pigs. J. Anim. Sci. 92(Suppl. 2):52 (Abstr.) Link to abstract (.pdf)

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Coefficient of standardized ileal digestibility of amino acids in corn, soybean meal, corn gluten meal, high-protein distillers dried grains, and field peas fed to weanling pigs (Short communication)

Petersen, G. I., Y. Liu, and H. H. Stein. 2014. Coefficient of standardized ileal digestibility of amino acids in corn, soybean meal, corn gluten meal, high-protein distillers dried grains, and field peas fed to weanling pigs (Short communication). Anim. Feed Sci. Technol. 188:145-149. Link to full text (.pdf)

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Phosphorus digestibility and concentration of digestible and metabolizable energy in corn, corn coproducts, and bakery meal fed to growing pigs

Rojas, O. J., Y. Liu, and H. H. Stein. 2013. Phosphorus digestibility and concentration of digestible and metabolizable energy in corn, corn coproducts, and bakery meal fed to growing pigs. J. Anim. Sci. 91:5326-5335. Link to full text (.pdf)

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Effects of reducing the particle size of corn on the digestibility of energy and nutrients and growth performance and carcass characteristics of growing-finishing pigs

Rojas, O. J., and H. H. Stein. 2013. Effects of reducing the particle size of corn on the digestibility of energy and nutrients and growth performance and carcass characteristics of growing-finishing pigs. Proceedings of the 2013 Allen D. Leman Swine conference, St. Paul, Minnesota, September 14-17, 2013. Link to full text (.pdf)

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Effects of different particle sizes of corn on feed efficiency in weanling pigs

Grinding of feedstuffs to small particle sizes is a low-cost way to increase their energy and nutrient digestibility. Currently, nutritionists recommend feeding corn ground to an average particle size of 650 to 700 µm. However, it may be advisable to formulate diets containing corn ground to smaller particle sizes due to the greater metabolizable energy (ME) values of these diets. A previous experiment conducted by Rojas and Stein at the University of Illinois demonstrated that when diets are formulated to contain the same amount of metabolizable energy, feeding diets containing corn ground to different sizes to weanling pigs did not have a negative effect on growth performance.

An experiment was conducted to test the hypothesis that when diets are not adjusted to contain equivalent amounts of metabolizable energy, weanling pigs fed diets containing corn ground to smaller particles sizes will have an improved gain to feed ratio relative to pigs fed corn containing corn ground to larger particle sizes.

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Effects of reducing the particle size of corn on energy, phosphorus, and amino acid by growing pigs

Rojas, O. J. and H. H. Stein. 2013. Effects of reducing the particle size of corn on energy, phosphorus, and amino acid by growing pigs. J. Anim. Sci 91(E-Suppl. 2):687 (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)

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