Arelovich, H.M., H.E. Laborde, M.I. Amela, M.B. Torrea, and M.F. Martínez. 2008. “Effects of Dietary Addition of Zinc and(or) Monensin on Performance, Rumen Fermentation and Digesta Kinetics in Beef Cattle”. Spanish Journal of Agricultural Research 6 (3), 362-72. https://doi.org/10.5424/sjar/2008063-329.