25 - Copper, manganese, and zinc source and concentration in free-choice mineral supplements influence on production throughout three cow-calf production cycles.

Presenting Author(s)

• CF

  Chance G. Farmer

  Beef Technical Manager
  Selko
  Ennis, Texas

Author(s)

• 

  Terry E. Engle, PhD

  Professor
  Department of Animal Sciences, Colorado State University
  FORT COLLINS, Colorado
• 

  Jerry W. Spears, BS, MS, PhD

  Professor Emeritus
  North Carolina State University
  Gallatin, Tennessee
• 

  Jeff S. Heldt, PhD

  Beef Technical Services Manager
  Selko USA
  Scottsbluff, Nebraska