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Archivos de Zootecnia
versão On-line ISSN 1885-4494versão impressa ISSN 0004-0592
Resumo
MEJIA-MARTINEZ, K.; LEMUS-FLORES, C. e ZAMBRANO-ZARAGOZA, J.F.. IgM and IgG immune response in Mexican Creole and comercial pigs: a comparative study. Arch. zootec. [online]. 2010, vol.59, n.226, pp.177-184. ISSN 1885-4494.
The aim of this work was to compare the humoral IgG and IgM immune response between Mexican Creole, Cuino (CC) and Mexican Pelon (CPM) pigs and commercial F1 Yorshire-Landrace pigs (CCO) to use it as indicators for resistance to disease. Seventy six animals obtained from Unidad Académica de Ciencias Veterinarias y Zootécnicas from Universidad Autónoma de Nayarit were included. After shoot, all animals were challenged with bacterina mixta porcina, which included Salmonella, Escherichia coli and Pasteurella antigens and the antibody levels were evaluated at eight and fifteen days after by ELISA. IgM anti-bacterina mixta porcina were significantly higher in CPM than in CC and CCO (p<0.05). For IgG levels, statistical differences were found neither between CPM and CC nor between CC and CCO. However, CPM showed higher levels than CCO. The results strongly suggest that CPM and CC have better humoral immune response than CCO pigs.
Palavras-chave : Humoral response; Mexican Creole pigs; Resistance.