P. H. Watanabe, M. C. Thomaz, L. A. F. Pascoal, U. dos S. Ruiz, E. Daniel, e A. B. Amorim, “<b>Manure production and mineral excretion in feces of gilts fed ractopamine</b&gt; - doi: 10.4025/actascianimsci.v35i3.18662”, Acta Sci. Anim. Sci., vol. 35, nº 3, p. 267-272, fev. 2013.