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Journal of Veterinary Diagnostic Investigation Vol. 20 Issue 3, 353-355
Copyright © 2008 by the American Association of Veterinary Laboratory Diagnosticians
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Brief Communication

Hemagglutinating activity of serovar reference strains of Ornithobacterium rhinotracheale

Vicente Vega, Andrea Zepeda, Saúl Ramírez, Vladimir Morales, Pomposo Fernández, Roberto Montes de Oca, Fernando M. Guerra-Infante, María de Jesús de Haro-Cruz, Patrick J. Blackall and Edgardo V. Soriano1

Correspondence: 1Corresponding Author: Edgardo V. Soriano, CIESA-FMVZ-UAEM, Instituto Literario No. 100, Col. Centro, Toluca 50000, México, e-mail: soriano{at}uaemex.mx

In the present study, the hemagglutinating activity of 9 reference strains (serovars A–I) of Ornithobacterium rhinotracheale was investigated by using fresh erythrocytes from 15 different species: chicken (broiler, rooster, hen), turkey, pigeon, quail, duck, Harris hawk (Parabuteo unicinctus), house finch (Carpodacus mexicanus), cow, sheep, horse, dog, rabbit, pig, human (groups A, B, AB, and O), and rainbow trout (Oncorhynchus mykiss). All 9 strains agglutinated rabbit erythrocytes. None of the strains was able to agglutinate hen, cow, horse, or rainbow trout erythrocytes. The number of positive reactions among the remaining species varied. Results indicate that the use of rabbit erythrocytes is better suited for testing the hemagglutinating activity of O. rhinotracheale.

Key Words: Erythrocytes • hemagglutination test • Ornithobacterium rhinotracheale • poultry






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