Effect of Dietary Rumen Protected Methionine and/or Choline Supplementation on Rumen Fermentation Characteristics and Productive Performance of Early Lactating Cows

M.A. Soltan, A.M. Mujalli, M.A. Mandour and M. El-Shinway Abeer

Pakistan Journal of Nutrition 11 ( 3 ): 221 - 230 , 2012