Marshall Stewart, W., Bertot Valdés, J., Corchado Iglesias, A., Uña Izquierdo, F. and Martín Mendoza, A. (2019) “Effects of the level of protein supplementation on the growth-fattening of Stagnant lambs fed with hay.”, Revista de Producción Animal, 17(1). Available at: https://revistas.reduc.edu.cu/index.php/rpa/article/view/3114 (Accessed: 17August2021).