Weiss, William P.2017-04-142017-04-142017-04-12https://hdl.handle.net/1813/48026This information was presented the 2017 Herd Health and Nutrition Conference, organized by the PRO-DAIRY Program in the College of Agriculture and Life Sciences at Cornell University. Softcover copies of the entire conference proceedings may be purchased at http:// ansci.cals.cornell.edu/dairy-management/ or by calling (607) 255-4478.MineralsCoppermanganeseMagnesiumsulfurarticle