Costa, M.L.L. da Rezende, A.S.C. de Sampaio, I.B.M. Silva, V.P. Santiago, J.M. Ferraz, V.P. Saliba, E. de O.S. Lana, A.M.Q. Retinol and mineral status in grazing foals during the dry season Subjects--Topical Terms: EQUINOBIOQUÍMICAVITAMINA APASTAGEM