TY - SER AU - Pinna,M. AU - Martins,G. AU - Freire,I. AU - Lilenbaum,W. TI - Deropositivity to Leptospira interrogans serovar Brastislava associated to reproductive problems without significant biochemical or hematological alterations in horses KW - CAVALO KW - LEPTOSPIROSE KW - BIOQUÍMICA ANIMAL ER -