Virginia Agricultural Experiment StationBrooks, Coy C.Thomas, Horace R.2019-10-022019-10-021958-10http://hdl.handle.net/10919/94299Rates of gain and hemoglobins were lower in the pigs receiving no trace mineral. When the first ration was supplanted with copper the rate of gain increased to a level beyond that of pigs receiving trace mineral mixture.4 pagesapplication/pdfen-USVirginia Agricultural Experiment Station materials are available for public use, re-print, or citation without further permission, provided the use includes credit to the author and to the Virginia Agricultural Experiment Station and Virginia Tech.Preliminary report on a study of minor element needs of growing swine in VirginiaReport