Grijalva Olmedo, J. E., Lucio-Armijos, M., Chacha, S., Vera, A., & Vera, R. (2018). Variation of ureic nitrogen in milk and blood of cows under grazing in mixed meadows during the rainy season in the Andean region. Archivos Latinoamericanos De Producción Animal, 26(3-4). Retrieved from https://ojs.alpa.uy/index.php/ojs_files/article/view/2626