August 2017 Lab News

Personnel changes

Two new students started their graduate work in the Stein lab this semester. Molly McGhee is originally from West Chicago. She worked with us for two years as an undergraduate while earning her degree in Animal Sciences. Hannah Bailey is from Eden Prairie, Minnesota. She earned her bachelor's degree from Iowa State University in 2016 with a major in Animal Science and a minor in Nutritional Science. She then went to work for Cargill Provimi before deciding to continue her education. Both Molly and Hannah will be pursuing Master's degrees.

Guillermo Fondevila Lobera is a visiting scholar from Spain. He will be here for two months before returning to finish his Ph. D. in monogastric nutrition at the Universidad Politécnica de Madrid.

Welcome to Molly, Hannah, and Guillermo!

New experiments

Vanessa started a study to determine the requirements for STTD calcium phosphorus to maximize growth performance and bone mineralization in 11 to 25 kg pigs.

Carly started an experiment on the effects of Sangrovit Extra on ATTD of energy and on concentration of DE and ME in diets fed to weanling pigs.

Von started a study of the effects of microbial phytase on degradation of phytate along the gastro-intestinal tract of growing pigs.


On August 10, Dr. Stein was in Gramado, Brazil, where he gave a talk titled "Requirements for digestible Ca by growing pigs." On August 22, he gave two talks in Santiago, Chile: "Nutritional value of soybean meal fed to pigs" and "Enhanced soybean meal in diets for weanling pigs." He then gave the same two talks in Quito, Ecuador on August 24.

Woongbi visited Korea for 2 weeks.

Diego Navarro traveled to the Philippines to visit family. Then, he went to Estonia to present at the 68th Annual Meeting of the European Federation of Animal Science (EAAP), where he gave a presentation on "Effects of physicochemical characteristics on in vitro and in vivo nutrient digestibility in pigs."


Kim, B. G., S. A. Lee, and H. H. Stein. 2017. Two days of adaptation period may be enough for measuring ileal AA digestibility using Cr or Ti as an indigestible index in swine diets. J. Anim. Sci. 95(Suppl. 4):44 (Abstr.)

Kim, B. G., K. R. Park, and H. H. Stein. 2017. Time course of indigestible indexes in the ileal out flow of pigs fed a soybean meal-based or nitrogen free diet. J. Anim. Sci. 95(Suppl. 4):209 (Abstr.)

Kim, B. G., K. R. Park, and H. H. Stein. 2017. Ileal amino acid digestibility values vary depending on the exogenous indigestible indexes in pigs fed a soybean meal-based diet. J. Anim. Sci. 95(Suppl. 4):209 (Abstr.)

Ullah, Z., Z. U. Rehman, Y. Yin, H. H. Stein, Z. Hayat, G. Ahmed, M. U. Nisa, M. Akhtar, and M. Sarwar. 2017. Comparative ileal digestibility of amino acids in 00-rapeseed meal and rapeseed meal fed to growing male broilers. Poult. Sci. 96:2736–2742.

She, Y., Y. Liu, J. C. González-Vega, and H. H. Stein. 2017. Effects of graded levels of an Escherichia coli phytase on growth performance, apparent total tract digestibility of phosphorus, and on bone parameters of weanling pigs fed phosphorus-deficient corn-soybean meal based diets. Anim. Feed Sci. Technol. 232:102-109.