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Veterinaria México OA

versión On-line ISSN 2448-6760


OSUNA CHAVEZ, Reyna Fabiola et al. First report of biovar 6 in birds immunized against Gallibacterium anatis in poultry farms located in Sonora, México. Veterinaria México OA [online]. 2017, vol.4, n.3, pp.2-9. ISSN 2448-6760.

Identification of the predominant circulating biovars is important for con trolling 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 re spiratory 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.

Palabras llave : Gallibacterium anatis; Biovar; biotyping; PCR.

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