Trace Minerals for California Beef Cattle 

University of California, Cooperative Extension

About the Authors

Dr. Dan Drake, Siskiyou County Farm Advisor,  djdrake@ucdavis.edu

Dr. John Maas, Cooperative Extension Veterinarian, D.V.M, jmass@ucdavis.edu

Dr. Jim Oltjen, Cooperative Extension Assoc. Mgmt Sys. Spec, Animal Science, jwoltjen@ucdavis.edu

Logan Smith, Intern for Project, logans@mail.csuchico.edu