Wayne, Ralph W.Mudge, J. WilliamConlin, B. J.Erickson, Russel W.2019-07-292019-07-291968https://hdl.handle.net/11299/205013This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enDHIA Recordsdairy herd improvement associationproduction milk cowsOther