Effects of Chelated Zinc or Copper on Ruminal Fermentation Characteristics and Milk Production in Lactating Holstein Cows

K.J. Jung, Y.H. Ko, G.S. Bae, E.J. Kim, S.S. Lee, I.K. Paik, D.Y. Kil, J.S. Chang, C.H. Kim, J.Y. Song and M.B. Chang

Journal of Animal and Veterinary Advances 12 ( 11 ): 1048 - 1054 , 2013