López Cantú; Gilberto, David; Hernández Barraza; … - In: Revista Mexicana de Agronegocios 34 (2014)
There were fed 48 bulls with mating of breeds Brahman, Beef master, Charolais and Brangus for 90 days, adding the last 30 days the β-adrenergic zilpaterol hydrochloride and ractopamine hydrochloride. They were divided into 3 groups, the control group, the group added zilpaterol hydrochloride...