Martin, Charles E.Wagner, William C.Elmore, Ronnie G.Ross, Richard F.2019-08-072019-08-071981https://hdl.handle.net/11299/205331This archival publication may not reflect current scientific knowledge or recommendations. Current information available from the University of Minnesota Extension: https://www.extension.umn.edu.enpork industryswine mastitis metritis agalactia MMAOther