Soltan, M., Almujalli, A., Mandour, M., & Abeer, M. E.-S. (2012). Effect of Dietary Chromium Supplementation on Growth Performance, Rumen Fermentation Characteristics and Some Blood Serum Units of Fattening Dairy Calves under Heat Stress. Pakistan Journal of Nutrition, 11(9), 849–854. https://doi.org/10.3923/pjn.2012.849.854