Nutrition - 1993

Ward, J. D., Spears, J. W., & Kegley, E. B. (1993). Effect of copper level and source (copper lysine vs copper sulfate) on copper status, performance, and immune response in growing steers fed diets with or without supplemental molybdenum and sulfur. Journal of Animal Science, 71(10), 2748. https://doi.org/10.2527/1993.71102748x

Ward, J. D., & Spears, J. W. (1993). Comparison of copper lysine and copper sulfate as copper sources for ruminants using in vitro methods. Journal of Dairy Science, 76(10), 2994. https://doi.org/10.3168/jds.S0022-0302(93)77638-9