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Stein Nutrition Newsletter, June 2015
June 2015

Welcome

Welcome to the Stein Nutrition Newsletter! In this issue, you will find some of the work our lab has produced in the previous month. For more information, please visit our website at http://nutrition.ansci.illinois.edu.

Stein Lab members receive honors

As part of its ‘Science can change the world’ campaign, DSM has created two stories about Dr. Stein's personal journey and mission as a scientist: Professor Dr. Hans H. Stein - DSM Nutritional Sciences Award (2015), and Meet the Scientists.

Neil Jaworski, a Ph. D. candidate in the Stein lab, received the Wilson G. Pond Travel Award from the American Society of Animal Science. The award will be presented at the at the ADSA-ASAS-CSAS 2014 Joint Annual Meeting in Orlando in July. He will use the funding to travel to the 66th EAAP Annual Meeting in Warsaw, Poland August 31-September 4.

Another Ph. D. candidate, Gloria Casas, received a Graduate Student International Research Grant from the Office of International Programs at the University of Illinois College of ACES. She will use the grant to conduct carbohydrate research at Aarhus University in Denmark this summer.

Research report: Determination of amino acid digestibility in soybean meal from different regions of the United States and fed to pigs

Soybeans grown in the northern United States are exposed to fewer growing days and hours of sunlight than soybeans grown elsewhere in the U.S. As a result, soybeans grown in the northern U.S. fix less nitrogen, and have a lower concentration of crude protein, than other U.S. soybeans. However, the concentrations of particular amino acids, particularly indispensable amino acids, are more important for the purposes of diet formulation than the concentration of crude protein. The concentration of amino acids in soybeans grown in different parts of the U.S. has not been determined.

The amount of amino acids in soybean meal that are available to the pig also depends on digestibility, but no research has been conducted to compare the digestibility of amino acids among soybean meal produced in different regions of the U.S. Therefore, an experiment was conducted to compare the standardized ileal digestibility (SID) of amino acids and the concentration of SID amino acids in soybean meal produced in different regions within the United States and fed to growing pigs.


(Read more ...)

Podcast: One or two diets for lactating sows?

Trine Pedersen is a visiting scholar in the Stein Monogastric Nutrition Lab. In this presentation, she shares the results of her Master's degree research at Aarhus University in Denmark, where she investigated ways to more efficiently feed lactating sows.

(Listen or download)

Press release: Researchers evaluate threonine co-product as alternative protein source for pig diets

URBANA, Ill. – Threonine is an indispensable amino acid, which is often provided in supplement form in swine diets. With U.S. production of crystalline amino acids increasing, more co-products from amino acid production are becoming available, and these co-products can also be fed to pigs. Researchers at the University of Illinois are investigating a co-product of synthetic threonine as a lower-cost alternative protein source to fish meal.

"To create synthetic threonine, you ferment a carbohydrate substrate using selected strains of bacteria, then extract the crystalline L-threonine from the fermentation product," said Hans H. Stein, a professor of animal sciences at U of I. "The biomass that's left over, even though most of the threonine has been extracted, is still rich in amino acids. If those amino acids are well digested by pigs, this could be a good source of protein."


(Read more ...)

In This Issue

• Stein Lab members receive honors
• Research report: Determination of amino acid digestibility in soybean meal from different regions of the United States and fed to pigs
• Podcast: One or two diets for lactating sows?
• Press release: Researchers evaluate threonine co-product as alternative protein source for pig diets

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