Jun Lin, Kunihiko Nishino, Marilyn C. Roberts, Marcelo Tolmasky, Rustam I. Aminov and Lixin Zhang* 1 Department of Animal Science, The University of Tennessee, Knoxville, TN, USA 2 Institute of Scientific and Industrial Research, Osaka University, Osaka, Japan 3 Department of Environmental and Occupational Health Sciences, University of Washington, Seatle, WA, USA 4 Center for Applied Biotechno...