Wilmer-PachecoWilmer Javier Pacheco

Extension Specialist & Assistant Professor

Poultry Science Department


Ph.D. Nutrition and Physiology, North Carolina State University, 2014
M.S. Poultry Science, North Carolina State University, 2011
B.S. Food Science and Technology, Panamerican Agriculture University, 2005

Professional Experience

Feed Milling Extension Specialist and Assistant Professor, Auburn University
Department of Poultry Science, Auburn University

Honors and Awards

Young Scientist Travel Grant, World Poultry Congress, Beijing China, 2016
Student Research Paper Certificate of Excellence, Poultry Science Association, 2014

Professional Affiliations

Poultry Science Association
Southern Poultry Science Society
American Feed Industry Association
Alabama Poultry and Egg Association

Research Activities

Research is focused on the interrelationships of feed milling, nutrition, and physiology on poultry performance; implementation of feed mill techniques that improve feed efficiency and reduce feed costs; identification of processing alternatives to decrease bacterial load in feed and feedstuffs; stability of feed additives during thermal processing, and use feed additives to improve broiler performance.

Extension Activities

Our extension program in feed milling supports the existing feed industry in the state by providing extension education in essential areas such as feed mill regulations, feed milling operations, ingredient and feed quality, feed safety as well as animal nutrition and serves as a catalytic agent to bring new ideas and innovation, which are essential for the future of the feed and poultry industry. Participation in fairs, FFA, and 4-H activities.

Courses Taught

POUL 8960 Special Problems

Select Publications

  • Xu, Y., C. R. Stark, P. R. Ferket, C. M. Williams, W. J. Pacheco, and J. Brake. 2015. Effect of dietary coarsely ground corn on broiler live performance, gastrointestinal tract development, apparent ileal digestibility of energy and nitrogen, and digesta particle size distribution and retention time. Poult. Sci. 94:53-60.
  • Pacheco, W. J., C. R. Stark, P. R. Ferket, and J. Brake. 2014. Effect of trypsin inhibitor and particle size of expeller extracted soybean meal on broiler live performance and weight of gizzard and pancreas. Poult. Sci. 93:2245-2252.
  • Pacheco, W. J., C. R. Stark, P. R. Ferket, and J. Brake. 2013. Evaluation of soybean meal source and particle size on broiler performance, nutrient digestibility, and gizzard development. Poult. Sci. 92:2914-2922.