Vargas VillalobosOmar, Cambronero CastroOscar, and Elizondo SalazarJorge. 2017. “Supplementation of Methionine Hydroxy Analog: Effect on Dairy Cow Performance”. Agronomía Mesoamericana 28 (3), 643-55. https://doi.org/10.15517/ma.v28i3.26897.