Ocorrência de Leptospira spp. em rebanhos bovinos Curraleiros (Pé-Duro) nos municípios de Amarante e Grajaú, Maranhão, Brasil

Abstract

Leptospirosis is a zoonosis caused by bacteria of the genus Leptospira and is a worldwide public health problem. This disease is of great importance for animal production, as it can compromise the health of the herd, cause reproductive problems and decrease in production generating negative economic impacts. The present study aimed to evaluate the frequency of Leptospira spp. In cattle breeds of Curraleira Pé-Duro breed in Maranhão, Brazil. Ninety-five samples of blood sera from females and males aged ≥ 24 months, randomly selected, from the municipalities of Amarante and Grajaú were collected. A questionnaire was applied to investigate the health situation of the herds. Serum samples were submitted to the Microscopic Soroagglutination (SAM) test, using 31 serovars of the anti-Leptospira spp complex. Of the samples analyzed, 2 (100%) for cattle and 95 (100%) for animals were reagents for one or more of the anti-Leptospira spp serovars with 1: 100 titers. The most prevalent serovars were Sentot 64/95 (67,4%), Patoc 61/95 (64,2%), Guaricura 57/95 (60%), Gryppotyphosa 56/95 (58.9%), Anadamana 52/95 (54.7%), Wolff 50/95 (52.6%), and H-CTG 48/95 (50.5%). It is concluded that in cattle of Curraleiros cattle the frequency of seroreagent animals for leptospirosis is high in the municipalities, indicating a wide dissemination of the infection in the Nuclei of Conservation of the Race. The positive occurrence for these serovars suggests the participation of the local fauna.