Shelton, N.W.; Tokach, M.D.; Nelssen, J.L; Goodband, R.D.; Dritz, S.S.; DeRouchey, J.M.; Hill, G.M.
(Kansas State University. Agricultural Experiment Station and Cooperative Extension Service, 2008)
Two 28-d experiments were conducted to determine the effects of increasing dietary zinc and copper levels on weanling pig performance. In each experiment, 180 weanling pigs (PIC, 21 d of age, 12.5 lb in Exp. 1 and 13.2 lb ...