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Stein Nutrition Newsletter, November 2016
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       November 2016

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.

In This Issue

• Research report: Standardized ileal digestibility of amino acids in wheat middlings and red dog fed to pigs
• Podcast: Effects of full fat or defatted rice bran and microbial xylanase on growth performance of weanling pigs
• Press release: Added fat in pig diets may affect digestibility of nutrients
• New publications from the Stein Monogastric Nutrition Laboratory

Research report: Standardized ileal digestibility of amino acids in wheat middlings and red dog fed to pigs

Wheat middlings and red dog are coproducts of the wheat milling process that are used as a source of energy and protein in animal feed. Wheat middlings are granular particles of the wheat endosperm, bran and germ. Red dog consists mainly of the aleurone layer that lies between the bran and the endosperm, along with small particles of bran, germ, and flour. It is often used in extrusion mixtures and as a pellet binder.

The digestibility of crude protein and amino acids in wheat coproducts produced in China has been reported, but there is limited information about the nutritional value of wheat middlings and red dog produced in the United States. In addition, because wheat coproducts vary in terms of the conditions under which they are produced, their nutritional value may vary as well. Therefore, the objective of this experiment was to determine the concentration and digestibility of crude protein and amino acids in ten sources of wheat middlings and in one source of red dog.

(Read more ...)

Podcast: Effects of full fat or defatted rice bran and microbial xylanase on growth performance of weanling pigs

Gloria Casas is a Ph. D. candidate in the Stein Monogastric Nutrition Laboratory. In this presentation, she discusses the effects of feeding full fat rice bran and defatted rice bran, without or with the addition of microbial xylanase, on growth performance and blood characteristics of weanling pigs. Adapted from a presentation at the 2016 ASDA-ASAS-CSAS-WSASAS Joint Annual Meeting, Salt Lake City, Utah, July 19-23.

(Watch or download)

Press release: Added fat in pig diets may affect digestibility of nutrients

URBANA, Ill. – Added fat increases the energy content of swine diets, but it may also affect the digestibility of nutrients. Dr. Hans H. Stein, professor of animal sciences at Illinois, and a team of researchers have studied the effects of fat sources with different concentrations of saturated and unsaturated fatty acids on mineral digestibility.

"In pigs, addition of soybean oil to the diets has been shown not to reduce calcium digestibility. However, some studies in pigs and humans have observed the formation of indigestible calcium-fat complexes," says Stein. "These studies used fats that were more saturated than soybean oil."

Therefore, Stein and his team set out to determine the effect of the relative concentrations of saturated (SFA), monounsaturated (MUFA), and polyunsaturated fatty acids (PUFA) on the apparent total tract digestibility (ATTD) of minerals in diets fed to pigs.

(Read more ...)

New publications from the Stein Monogastric Nutrition Laboratory

Rojas, O. J. and H. H. Stein. 2016. Use of feed technology to improve the nutritional value of feed ingredients. Anim. Prod. Sci. 56:1312-1316.

González-Vega, J. C. and H. H. Stein. 2016. Digestibility of calcium in feed ingredients and requirements of digestible calcium for growing pigs. Anim. Prod. Sci. 56:1339-1344.

Copyright © 2016 University of Illinois at Urbana-Champaign, All rights reserved.


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