JOB SUMMARY: This position is located in the United States Department of Agriculture, Agricultural Research Service, Animal Biosciences and Biotechnology Laboratory at the Beltsville Agricultural Research Center, Beltsville, MD. In this position, you will be develop knowledge and technology to improve genetic, reproductive, and nutrient utilization efficiency traits of livestock and poultry through the application of functional genomics and proteomics, assessment of host-pathogen interactions. MAJOR DUTIES: Elucidate the changes in bacterial and fungal communities in the gut induced by antibiotic growth promoters that promote growth. IMPORTANT: Click the 'Apply for this job' button to view a complete job description.