2018-02-162018-02-162003-04PÔRTO, Regiani Nascimento Gagno; SOBESTIANSKY, Jurij; MATOS, Moema Pacheco Chediak; GAMBARINI, Maria Lúcia. Aspectos físicos químicos e microbiológicos da urina de matrizes suínas descartadas. Ciência Rural, Santa Maria, v. 33, n. 2, p. 319-324, mar./abr. 2003.e- 1678-45960103-8478http://repositorio.bc.ufg.br/handle/ri/13652The present study describes the physical-chemical alterations of the urine and identifies etiological agents of the urine of 35 sows. Out of 35 samples, 16 (45.7%) were positive for nitrite and/or blood, positive for urinary infection (UI); eight (50%) were dark yellow and six (37.5%) had clear yellow coloration; in two (12.5%) samples did not show any alteration. Ten samples had ammonia smell, seven among them were positive for UI. Other findings were turbid urine and turbid with grumes, normal pH values (5.5 – 6.5) and densities higher than 1012. Microorganisms were isolated in 91.5% out of 35 urine samples, with prevalence of Escherichia coli (45.7%). In 11 samples (31.4%) Actinobaculum suis was isolated, four were simultaneously positive for UI and Actinobaculum suis; seven were negative for UI, but it was observed the presence of Actinobaculum suis in the indirect immunofluorescence.porAcesso AbertoMatrizes suínasInfecção urináriaActinobaculum suisAspecto físico químico da urinaSowsUrinary infectionPhysical-chemical aspects of urineArtigo10.1590/S0103-84782003000200021