Jacela, Jay Y.; DeRouchey, Joel M.; Tokach, Mike D.; Goodband, Robert D.; Nelssen, Jim L.; Renter, David G.; Dritz, Steve S.
(2010)
Copper and zinc play important roles in many physiological
processes. Dietary copper levels of 5 to 10 ppm and zinc levels of
50 to 125 ppm are generally enough to meet the pig’s nutrient
requirement for these processes. ...