Bergstrom, J.R.; Tokach, M.D.; Dritz, S.S.; Nelssen, J.L; DeRouchey, J.M.; Goodband, R.D.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2007)
A total of 1,207 pigs (PIC, 337 × 1050) were used in a 28-d experiment in a commercial research barn to evaluate the effects of two true ileal digestible (TID) lysine concentrations, Optipak®, ractopamine HCl, and their ...