Effects of dietary copper, zinc, and ractopamine hydrochloride on finishing pig growth performance, carcass characteristics, and antimicrobial susceptibility of enteric bacteria12

J. A. Feldpausch, R. G. Amachawadi, M. D. Tokach, H. M. Scott, T. G. Nagaraja, S. S. Dritz, R. D. Goodband, J. C. Woodworth, J. M. DeRouchey
2016 Journal of Animal Science  
doi:10.2527/jas.2016-0340 pmid:27695810 fatcat:jetr6x4f6farbfcp3aigzqi6q4