Stein Nutrition Newsletter, August 2016

August 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: Effects of feeding level and physiological stage on digestibility of GE and NDF and concentration of DE and ME in full fat and defatted rice bran fed to gestating sows and growing gilts
• Podcast: Effects of inclusion of canola meal in weanling pig diets containing different concentrations of energy
• Press release: U of I, Chinese researchers team up to study energy digestibility in wheat bran fed to pigs
• New publications from the Stein Monogastric Nutrition Laboratory

Research report: Effects of feeding level and physiological stage on digestibility of GE and NDF and concentration of DE and ME in full fat and defatted rice bran fed to gestating sows and growing gilts

Gestating sows have been found to have greater digestibility of energy than growing pigs. One possible explanation is that sows' larger intestinal tracts and more efficient fermentation of fiber allow them to extract more energy from their feed.
Gestating sows are usually restricted in their feed allowance while growing pigs are fed ad libitum. This confounds comparisons between sows and growing pigs because feeding level affects the rate at which feed passes through the intestinal tract and may affect the efficiency of digestion.

(Read more ...)

Podcast: Effects of inclusion of canola meal in weanling pig diets containing different concentrations of energy

Trine Pedersen, who was a visiting scholar in the Stein Lab in 2015, presents the results of a study of high protein and conventional canola meal fed to weanling pigs. She evaluated the effects of canola meal inclusion, dietary net energy, and the addition of an exogenous enzyme on growth performance and physiological parameters. 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: U of I, Chinese researchers team up to study energy digestibility in wheat bran fed to pigs

URBANA, Ill. – Research conducted by researchers at the University of Illinois collaborating with colleagues at China Agricultural University in Beijing, China, is helping to determine the nutritional value of wheat bran in diets fed to pigs. Wheat bran, like many other co-products from the human food industries, contains more fiber than corn and soybean meal, which adversely affects energy digestibility.

"To save on feed costs, more producers are turning to co-products,” says Dr. Hans H. Stein, professor of animal sciences at Illinois. "Therefore, there is a need to determine the energy contribution from fiber-rich ingredients. But the effect of dietary fiber on heat production and net energy of diets is unclear."

(Read more ...)

New publications from the Stein Monogastric Nutrition Laboratory

Jaworski, N. W., D. W. Liu, D. F. Li, and H. H. Stein. 2016. Wheat bran reduces concentrations of digestible, metabolizable, and net energy in diets fed to pigs, but energy values in wheat bran determined by the difference procedure are not different from values estimated from a linear regression procedure. J. Anim. Sci. 94:3012-3021.