Dr. Schoonmaker specializes in beef cow/calf and feedlot nutrition, growth, and development. Dr. Schoonmaker's research focuses on nutritional influences on growth and development, specifically how energy source, protein source, vitamins, and minerals impact muscle and fat development in developing (fetal and neonatal), growing, and finishing cattle.
Nafikov, R. A., J. P. Schoonmaker, K. T. Korn, K. Noack, D. J. Garrick, K. J. Koehler, J. Minick-Bormann, J. M. Reecy, D. E. Spurlock, and D. C. Beitz. 2013. Sterol regulatory element binding transcription factor 1 (SREBF1) polymorphism and milk fatty acid composition. J. Dairy Sci. 96(4):2605-2616.
Schoonmaker, J. P., M. C. Claeys, and R. P. Lemenager. 2013. Effect of increasing distillers grains inclusion on performance and carcass characteristics of early-weaned steers. J. Anim. Sci. 91(4):1784-1790.
Korn, K.T., M. C. Claeys, R. P. Lemenager, and J. P. Schoonmaker. Supplemental vitamin D3 and zilpaterol hydrochloride I. Effect on performance, vitamin D metabolites, carcass traits, and meat tenderness in feedlot steers. J. Anim. Sci. 91(7):3322-3331.
Korn, K. T., J. N. Waddell, M. C. Claeys, R. P. Lemenager, and J. P. Schoonmaker. 2013. Supplemental vitamin D3 and zilpaterol hydrochloride II. Effect on calcium concentrations, muscle fiber type, and calpain expression in feedlot steers. J. Anim. Sci. 91(7):3332-3340.
Nafikov, R. A., J. P. Schoonmaker, K. T. Korn, K. Noack, D. J. Garrick, K. J. Koehler, J. Minick-Bormann, J. M. Reecy, D. E. Spurlock, and D. C. Beitz. Association of polymorphisms in solute carrier family 27, isoform A6 (SLC27A6) and fatty acid binding protein-3 and fatty acid binding protein-4 (FABP3 and FABP4) with fatty acid composition of bovine milk. J. Dairy Sci. (in press)
Schoonmaker, J. 2012. Nutrition of Ruminants. (Chapter 6). In: Animal Science and Industry, 8th Edition, Edit. M. Cunningham, M. A. Latour, and D. Acker., Pearson & Prentice Hall, Inc. Upper Saddle River, NJ.
Schoonmaker, J., and Beitz, D. C. 2012. Hydrogen sulphide: synthesis, physiological roles and pathology associated with feeding cattle maize co-products of the ethanol industry. In Biofuel co-products as livestock feed: Opportunities and challenges (Vol. 1, pp. 101-113). Rome, Italy: Food and Agriculture Organization of the United Nations.
Drewnoski, M. E., Ensley, S. M., Beitz, D. C., Schoonmaker, J., Loy, D. D., Immerman, P. M., . . . Hansen, S. L. 2012. Assessment of ruminal hydrogen sulfide or urine thiosulfate as diagnostic tools for sulfur induced polioencephalomalacia in cattle. Journal of Veterinary Diagnostic Investigation, 24(4), 702-709.
Garmyn, A. J., Hilton, G. G., Mateescu, R. G., Morgan, J. B., Reecy, J. M., Tait, R. G., . . . VanOverbeke, D. L. 2011. Estimation of relationships between mineral concentration and fatty acid composition of longissimus muscle and beef palatability traits. Journal of Animal Science, 89, 2849-2858.
Schoonmaker, J., Trenkle, A. H., & Beitz, D. C. 2010. Effect of feeding wet distillers grains on performance, marbling deposition, and fatty acid content of beef from steers fed low or high forage diets. Journal of Animal Science, 88, 3657-3665.
Reecy, J. M., Tait, R. G., VanOverbeke, D. L., Garmyn, A. J., Mateescu, R. G., Van Eenennaam, A. L., . . . Garrick, D. J. 2010. Use of genomics to improve healthfulness and quality of meat. Proceedings of the 9th World Congress of Genetics Applied to Livestock Production. Retrieved from http://www.kongressband.de/wcgalp2010/assets/pdf/0053.pdf
Schoonmaker, J., Trenkle, A., & Beitz, D. C. 2009. Effect of feeding ethanol by-products on performance and marbling deposition in steers fed high-concentrate or high-forage diets, 14. Retrieved from http://www.ans.iastate.edu/report/air/2009pdf/R2419.pdf
Nafikov, R., Schoonmaker, J., Reecy, J., Moody-Spurlock, D., Beitz, D., Koehler, K., & Minick-Bormann, J. 2009. Effects of A17924G genotypes associated with thioesterase domain of fatty acid synthase and K232A genotypes of diacylglycerol acyltransferase-1 on milk fatty acid composition in Holstein dairy cows., 3. Retrieved from http://www.ans.iastate.edu/report/air/2009pdf/R2433.pdf
Nafikov, R., Schoonmaker, J., Reecy, J., Moody-Spurlock, D., Minick-Bormann, J., Koehler, K., and Beitz, D. C. (in press). Polymorphisms in lipogenic genes and variations in milk fatty acid composition in Holstein dairy cows. Journal of Dairy Science, (92(E-Suppl. 1)), 45.
Huang, Y., Schoonmaker, J., Oren, S. L., Trenkle, A., and Beitz, D. C. 2009. Calcium salts of CLA improve availability of dietary CLA for intestinal absorption in sheep. Livestock Production Science, (122), 1-7.