Soroprevalência de anticorpos anti-Leptosira ssp. em rebanhos de bovinos de corte no município de Mineiros - GO

Abstract

The present study aimed to know the seroprevalence of anti-Leptospira spp. in cattle for slaughter in the municipality of Mineiros, Goiás, correlating the results found with the data obtained through a questionnaire applied to the producers. A total of 130 blood serum samples were collected from cattle of different ages and of both sexes from three different rural properties, followed by an epidemiological survey of the region. The microscopic sero-agglutination test in the dark field (SAM) was performed using 22 different serovars of Leptospira interrogans, in the Laboratory of Infectious Diseases of the Federal University of Uberlândia. The prevalence of reactive positive animals was 86.15%, and the serovars Hardjioprajitino (8.03%), Tarassovi (7.14%) and Wolffi (6.25%) were the most frequent, most cases of seropositivity was of coagglutinations that represented 67.85% of the positivities. All properties showed more than 50% of the animals tested positive for leptospirosis, and aspects such as the presence of other animal species and lack of vaccination were determinant for this high prevalence. This result shows that this infection is still very present in bovine herds in the municipality of Mineiros, thus requiring more research and prevention methods.