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Year 2011 - Volume 31, Number 10
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Serology, polymerase chain reaction and histopathology for leptospirosis in samples collected at slaughter from dairy cows of Parnaiba region, state of Piauí, Brazil, 31(10):859-866
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ABSTRACT.- Mineiro A.L.B.B., Vieira R.J., Costa E.A., Santos R.L., Gonçalves L.M.F., Carvalho S.M., Bomfim M.R.Q. & Costa F.A.L. 2011. Serology, polymerase chain reaction and histopathology for leptospirosis in samples collected at slaughter from dairy cows of Parnaiba region, state of Piauí, Brazil. Pesquisa Veterinária Brasileira 31(10):859-866. Departamento de Clínica e Cirurgia Veterinária, Centro de Ciências Agrárias, Universidade Federal do Piauí, Campus da Socopo, Bairro Ininga, Teresina, PI 64049-550, Brazil. E-mail: fassisle@gmail.com
The presence of anti leptospiral agglutinins (microscopic agglutination test - MAT) and DNA of leptospires was investigated in the kidney and urine (Polymerase Chain Reaction - PCR) in samples collected at the time of slaughter of cattle originating from the dairy basin of Parnaíba, Piauí, Brazil, as also the lesions in kidney, lung, liver, uterus, ovary and placenta (histopathology and immunohistochemistry). In the MAT, Hardjo was the predominant serovar with the highest number of reagent animals for the strain Hardjobovis/Sponselee. Anti-leptospiral antigens were scored in epithelial cells, interstitial vascular endothelium, endothelium of glomerular capillaries and Bowman’s capsule of 20 positive animals. Inflammatory cells were more common in the kidney. PCR was positive in urine and kidney tissue. |
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