First report of biovar 6 in birds immunized against Gallibacterium anatis in poultry farms located in Sonora, Mexico.

Reyna Fabiola Osuna Chávez, Ramón Miguel Molina Barrios, Juan Francisco Hernández Chávez, Jorge Robles Mascareño, Jesús Gabriel Adrián Icedo Escalante, Martín Acuña Yanes

Abstract


Veterinaria México OA
ISSN: 2448-6760

Cite this as:

  • Osuna Chávez RF, Molina Barrios RM, Hernández Chávez JF, Robles Mascareño J, Icedo Escalante JGA, Acuña Yanes M. First report of biovar 6 in birds immunized against Gallibacterium anatis in poultry farms located in Sonora, Mexico. Veterinaria México OA. 2017;4(3). doi: 10.21753/vmoa.4.3.389.

Identification of the predominant circulating biovars is important for controlling Gallibacterium anatis infections in poultry because efficient protection is based on the use of biovar-specific immunogens. Twenty-three isolates of Gallibacterium anatis were recovered from commercial laying hens with respiratory and reproductive clinical signs. Bacteria were identified as G. anatis based on morphology, biochemistry, and PCR testing. Biochemical analyses identified the isolates as biovar 6 which had not previously been reported in Sonora, México. Therefore, the recent finding of biovar type 6 could explain clinical presentations of this disease in immunized commercial laying flocks in Sonora.


Figure 1. PCR amplification gene, Gallibacterium anatis.

Keywords


Gallibacterium anatis, Biovar, biotyping, PCR.

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References


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DOI: http://dx.doi.org/10.21753/vmoa.4.3.389

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