Frequency of leptospiral agglutinins in swine blood sera at the microregions of vicosa and ponte nova state of minas gerais brazil

Faria, J.E.D.; Santos, J.L.D.; Ribeiro, M.F.B.; Dale, R.; Salcedo, J.H.P.

Arquivo Brasileiro de Medicina Veterinaria e Zootecnia 41(5): 381-388


ISSN/ISBN: 0102-0935
Accession: 007361875

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Blood samples from 610 sows pertaining to 63 swine farms, under good management conditions, at the microregions of Vicosa and Ponte Nova, State of Minas Gerias, were tested through the Rapid Microagglutination Test (RMT). A battery of live antigens composed of 16 different Leptospira serotypes, developed in Stuart's medium, was used. A frequency of 7.70% of reactive sera was found in the microregions studied. Frequencies of 0.53% and 10.95% were detected in the microregions of Vicosa and Ponte Nova, respectively. This serological titers varied from 1:100 to 1:12,800. The serotype pomona was the most frequent in this study. With respect to the swine farms, 15.87% of them had reacting animals for Leptospira: Vicosa - 4.00% and Ponte Nova - 23.68%.