September 2013 Lab News


González-Vega, J. C., C. L. Walk, Y. Liu, and H. H. Stein. 2013. Determination of endogenous intestinal losses of calcium and true total tract digestibility of calcium in canola meal fed to growing pigs. J. Anim. Sci. 91:4807-4816.

Personnel changes

Marcia DeSouza Vieira joined us as a visiting scholar. Marcia was born in Rio de Janeiro, Brazil, where she earned her bachelor's and master's degrees. She is now working on her Ph. D. at the Federal University of Rio Grande do Sul. Marcia is here for a month to learn about the use of cannulated pigs to determine ileal digestibility.

Lab activities

Tanawong did an in vitro study of energy digestibility of canola and rapeseed meal.

John started a study of amino acid digestibility in field peas, soybean meal, soybean hulls, corn, and fish meal; and one on lysine requirements of growing gilts from 25-50kg.

Caroline started an experiment about the effect of fiber, oil, and using different types of diets to determine the digestibility of calcium in fish meal.


Tanawong, Orawan, Caroline, Oscar, John, Diego, Neil, Shelby, and Kelly attended the Thirteenth Annual Midwest Swine Nutrition Conference on September 5th in Indianapolis.

On September 10, Neils, Marcia, Chelsie and Shelby went to an open house and ribbon cutting for a new 2400 head wean to finish hog farm in Assumption, IL. They got to look around and have free pork burger/pork chop dinner.


Neil, Shelby, Dr. Liu, and Dr. Stein attended the International Symposium on Energy and Protein Metabolism and Nutrition in Sacramento from September 9-12. Afterward, they traveled to the University of California at Davis to partake in a course on indirect calorimetry from September 13-15.

Oscar attended the 2013 Allen D. Leman Swine Conference at the University of Minnesota from September 14-17. He gave a talk on "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."

Dr. Stein left on September 25 for a three-week trip to Asia, beginning in the Philippines.