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Year 2011 - Volume 31, Number 1
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Comparison between immunity induced in cattle vaccinated with commercial polyvalent bacterins and one experimental monovalent, 31(1):10-16
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ABSTRACT.- Rodrigues R.O., Herrmann G.P., Heinemann M.B., Lage A.P., Lopes L.B. & Moreira E.C. 2011. [Comparison between immunity induced in cattle vaccinated with commercial polyvalent bacterins and one experimental monovalent.] Comparação entre a imunidade induzida em bovinos vacinados com bacterinas polivalentes comerciais e uma monovalente experimental. Pesquisa Veterinária Brasileira 31(1):10-16. Departamento de Medicina Veterinária Preventiva e Epidemiologia, Escola de Veterinária, Universidade Federal de Minas Gerais, Belo Horizonte, MG 30123-970, Brazil. E-mail: rogerrodriguesvet@gmail.com
The study evaluated the induction of antibody production against ten bacterins, nine polyvalent and one experimental monovalent to serovar Hardjo strain Norma. An indirect enzyme linked immunosorbent assay (ELISA) was developed using anti-IgG conjugate to measure total levels of IgG class antibodies conferred by bacterins using three different strains: Hardjoprajiitino, Norma and Hardjo-bovis. Microscopic Agglutination Test (MAT) was also used to measure immunoglobulin levels of the same strains. Variable ELISA titers were induced by the tested bacterins. The MAT titers found showed lower intensity and shorter duration, indicating the need to cellular control in further standardization of these vaccines. Based on results of this study, the monovalent bacterin showed best performance. |
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