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Stein Nutrition Newsletter, July 2013
July 2013

Welcome

Welcome to the Stein Nutrition Newsletter! I hope you will find the information useful. This month, I am proud to highlight the achievements of two of my students, Ferdinando Almeida and Oscar Rojas. For more information, please visit our website at http://nutrition.ansci.illinois.edu.

Almeida, Rojas honored by ASAS

The American Society of Animal Science honored two scholars from the Stein Monogastric Nutrition Laboratory at the ADSA-ASAS 2013 Joint Annual Meeting in Indianapolis in July. Dr. Ferdinando Almeida, who earned his Master's degree and Ph. D. as a student in the Stein lab, was awarded the Agri-King Outstanding Graduate Student Award. Oscar Rojas, a current Ph. D. candidate, received the Wilson G. Pond International Travel Award and the Fontenot Appreciation Travel Award.

(Read more ...)

Research report: Amino acid digestibility of heat damaged distillers dried grains with solubles fed to pigs

The production of corn distillers dried grains with solubles (DDGS) involves a drying step in which temperature may reach 500°C or greater. The application of heat and moisture to feedstuffs results in the Maillard reaction, which reduces the concentration and digestibility of amino acids. Lysine's chemical structure makes it particularly susceptible to the Maillard reaction. However, during the acid hydrolysis step of amino acid analysis, some lysine is recovered from Maillard products, but this lysine cannot be utilized by the animals, and thus, the amount of digestible lysine in a sample may be overestimated. Therefore, methods other than simple lysine analysis must be used when assessing feed that may be heat damaged.

An experiment was conducted to determine the effects of heat damage on the digestibility of crude protein and amino acids in corn DDGS fed to growing pigs. A second objective of the experiment was to develop regression equations to predict the concentration of standardized ileal digestible (SID) amino acids in DDGS.

(Read more ...)

Podcast: Effects of using copra meal, palm kernel expellers, or palm kernel meal in diets for weanling pigs

Caroline González-Vega, a Ph. D. student in the Stein Monogastric Nutrition Lab, presents the results of three experiments designed to test the effects on growth performance of including 0, 5, 10, 15% of copra meal, palm kernel expellers, or palm kernel meal in diets fed to weanling pigs. Adapted from a presentation at the 2013 ASDA-ASAS Joint Annual Meeting, Indianapolis, IN, July 8-12.

(Listen or download)

Podcast: Energy value in canola meal, 00-rapeseed meal, and 00-rapeseed expellers fed to growing pigs

Tanawong Maison, a Ph. D. student in the Stein Monogastric Nutrition Lab, discusses an experiment to determine energy values in canola and 00-rapeseed products fed to growing pigs. The experiment compared canola and 00-rapeseed meal produced from plants grown in different locations, as well as 00-rapeseed meal products resulting from different oil extraction techniques. Adapted from a presentation at the 2013 ASDA-ASAS Joint Annual Meeting, Indianapolis, IN, July 8-12.

(Listen or download)

New publications from the Stein Monogastric Nutrition Laboratory

Liu, Y., Y. L. Ma, J. M. Zhao, M. Vázquez-Añón, and H. H. Stein. 2013. Retention and digestibility of Zn, Cu, Mn, and Fe in pigs fed diets containing inorganic or organic minerals. J. Anim. Sci. 91(E-Suppl. 2):162 (Abstr.)

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.)

Brotzge, S. D., L. I. Chiba, C. K. Adhikari, H. H. Stein, S. P. Rodning, and E. G. Welles. 2013. Complete replacement of soybean meal in pig diets with hydrolyzed feather meal with blood by amino acid supplementation based on standardized ileal digestibility. J. Anim. Sci 91(E-Suppl. 2):585 (Abstr.)

Maison, T. and H. H. Stein. 2013. Digestible and metabolizable energy concentration in canola meal, 00-rapeseed meal, and 00-rapeseed expellers fed to growing pigs. J. Anim. Sci. 91(E-Suppl. 2):676 (Abstr.)

Kim, B. G. and H. H. Stein. 2013. Diurnal variation of amino acid digestibility in pigs. J. Anim. Sci. 91(E-Suppl. 2):686 (Abstr.)

Almeida, F. N., J. K. Htoo, J. Thomson, and H. H. Stein. 2013. Effects of adjusting the standardized ileal digestibility (SID) amino acids in heat damaged soybean meal (SBM) or distillers dried grains with solubles (DDGS) in diets on performance of weanling pigs. J. Anim. Sci. 91(E-Suppl. 2):686 (Abstr.)

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.)

Jaworski, N. W., J. C. González-Vega, and H. H. Stein. 2013. Growth performance of weanling pigs fed diets containing copra meal, palm kernel expellers, or palm kernel meal. J. Anim. Sci 91(E-Suppl. 2):706 (Abstr.)

In This Issue

Almeida, Rojas honored by ASAS
• Research report: Amino acid digestibility of heat damaged distillers dried grains with solubles fed to pigs
• Podcast: Effects of using copra meal, palm kernel expellers, or palm kernel meal in diets for weanling pigs
• Podcast: Energy value in canola meal, 00-rapeseed meal, and 00-rapeseed expellers fed to growing pigs
• New publications from the Stein Monogastric Nutrition Laboratory

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