Soroprevalência de aglutininas anti-Leptospira spp. em ovinos nas Mesorregiões Sudeste e Sudoeste do Estado Rio Grande do Sul, Brasil
Open Access
- 1 April 2004
- journal article
- Published by FapUNIFESP (SciELO) in Ciência Rural
- Vol. 34 (2) , 443-448
- https://doi.org/10.1590/s0103-84782004000200017
Abstract
A presença de aglutininas anti-Leptospira spp. em 1360 amostras soros de ovinos, clinicamente sadios com mais de um ano de idade, criados extensivamente em 136 fazendas de 18 municípios; 10 na Mesorregião Sudeste e 8 na Mesorregião Sudoeste do Estado do Rio Grande do Sul, entre os meses de janeiro a março de 1999. Foi determinado pela Técnica de Aglutinação Microscópica (MAT), das 1360 amostras de soros testados, 466 (34,26%) animais foram reagentes e os títulos de aglutininas anti-Leptospira spp. variavam de 100 a 3200. As sorovariedades encontradas foram: hardjo (Norma), 210 (28,4%), sentot, 152 (16,8%); hardjoprajitno, 133 (14,5%); fortbragg 73 (6,3%), wolffi, 39 (4,7%); pyrogenes, 25 (1,8%); australis, 21 (1,6%); pomona, 20 (1,6%); sejroe, 19 (2,2%); castellonis, 18(1,8%); hebdomadis, 17 (1,3%); icterohaemorrhagiae, 16 (0,5%); grippotyphosa, 9 (0,7%); canicola, 8 (0,6%); tarassovi, 7 (0,6%), bratislava, 4 (0,29%), autumnalis, 3 (0,2%). Os resultados mostraram que as Leptospira spp. estão disseminadas na maioria das fazendas que criam ovinos nas Mesorregiões Sudeste e Sudoeste do Rio Grande do Sul. The presence of anti-Leptospira agglutinins in 1.360 samples of ovine sera was determined. Clinically healthy sheep with more than one year of age, raised in pasture in 136 farms of 18 counties, 10 located in the southeast Mesorregions and 8 in the southwest Mesorregions of the state of Rio Grande do Sul, Brazil, between the months of January and March of 1999. Were used sera tested by the Microscopic Agglutination Technique (MAT), from the 1.360 samples of serum tested, 466 (34.26%) were positive and the titers of anti-Leptospira spp. agglutinins varied from 100 to 3.200. The serovars founded were: hardjo (Norma), 210 (28.4%), sentot, 152 (16.8%); hardjoprajitno, 133 (14.5%); fortbragg, 73 (6.3%); wolffi, 39 (4.7%); pyrogenes, 25 (1.8%); australis, 21 (1.6%); pomona, 20 (1.6%); sejroe, 19 (2.2%); castellonis, 18 (1.8%); hebdomadis, 17 (1.3%); icterohaemorrhagiae, 16 (0.5%); grippotyphosa, 9 (0.7%); canicola , 8 (0.6%); tarassovi, 7 (0.6%), bratislava, 4 (0.29%), autumnalis, 3 (0.2%). The results demonstrate that Leptospira spp are disseminated in the majority of the farms that raise sheep in the southeast and southwest Mesorregions of the State of Rio Grande do Sul, BrazilKeywords
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