Journal
VETERINARY CLINICAL PATHOLOGY
Volume 37, Issue 3, Pages 328-331Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1939-165X.2008.00055.x
Keywords
avian; chicken; IgY; immunology; protein electrophoresis; Western blot
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Background: A major challenge in the serologic diagnosis of infectious diseases in exotic birds is the limited availability of species-specific antibodies. Objectives: The purpose of the current study was to determine if there is cross reactivity between commercially available anti-chicken IgY antibodies and immunoglobulins of several avian species, with particular emphasis on psittacines. Methods: To quantitate the reactivity with anti-chicken IgY, Western blot analysis was performed using plasma samples from many different avian species. Results were compared with gamma globulin fraction quantitation obtained by protein electrophoresis. Results: By Western blot, 2 protein bands corresponding to the heavy and light chains of chicken IgY were identified in species from 21 avian orders using 1 of 2 rabbit anti-chicken IgY antibodies. Densitometric analysis showed that the amount of immunoglobulin estimated from Western blots correlated strongly with data from protein electrophoresis assays. Conclusions: The results demonstrate that some commercially available anti-chicken IgY antibodies exhibit good cross-reactivity with most avian species.
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