Prevalência de brucelose, leptospirose e neosporose em fêmeas bovinas com retenção de placenta no sudoeste do Paraná

Abstract

Brucellosis and Leptospirosis are diseases knowing for its zoonotic potential, besides causing reproductive disorders in bovines, such as Neosporosis, which carries in a decreased efficiency and profitability in dairy production. Considering the economic impact and development delay of productivity that the diseases of reproductive organs predispose, the objective of this study is to establish the prevalence of Brucellosis, Leptospirosis and Neosporosis in females cattle affected by placenta retention in dairy herds in the south-west region of Paraná. It was studied 84 dairy cattle, diagnosed with placenta retention with partial or total presence of fetal membranes in the uterus of these animals over of 12 hours, localized in herds in the municipalities of Nova Prata do Iguaçu, Nova Esperança do Sudoeste, Realeza and Salto do Lontra. To a diagnostic of Brucellosis it was utilized the sorological test of screening Buffered Acidified Antigen, of Leptospirosis by the microscopic agglutination test, and of Neosporosis by the indirect immunofluorescence test, where it was diagnosed positives the animals with title equal or higher that 1:200. None of 84 animals with placenta retention it was detected the presence of Brucella abortus bacteria. These, 39,28% (33/84) were reactive to one or more serovars of Leptospira, 15,47% (13/84) were positive to Neospora caninum and 4,76% (4/84) were reactive to serovars of Leptospira sp. and Neospora caninum, concomitantly. Under the conditions of this study, it was concluded that females cattle with placenta retention showed titullation to Leptospira sp and/or Neospora sp, whose presence of these agents could also relate to the occurrence of placenta retention and another reproductive problems.