Valença, R.M.B. Silva Junior, V.A. Araújo, L.P.C. Reis, J.C. Guerra, M.M.P. Soares, P.C. Costa, A.N. Morphometry and histomorphometry of the testis in crossbred pigs fed diets with different protein levels Subjects--Topical Terms: SUÍNOPROTEÍNADIETATESTICULOESPERMA