Silva Del Rio, N.Stewart, StevenRapnicki, PaulChang, Y.M.Fricke, Paul M.2011-07-202011-07-202005-05-18https://hdl.handle.net/11299/109549en-USCattleDairyHerd HealthAn observational analysis of twin births, calf sex ratio, and calf mortality in Holstein dairy cattle.Conference Paper