Molecular characterization of bacterial microbiota associated with infectious bovine keratoconjunctivitis in Michoacán, Mexico

Autor: Ana M. Ríos-Alanís, Joel E. López-Meza, Alejandra Ochoa-Zarzosa, Jose C. Segura-Correa, José Herrera-Camacho
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Revista Colombiana de Ciencias Pecuarias, Vol 34, Iss 1, Pp 18-28 (2020)
Druh dokumentu: article
ISSN: 2256-2958
DOI: 10.17533/udea.rccp.v34n1a02
Popis: Background: The most common ocular disease affecting cattle worldwide is infectious bovine keratoconjunctivitis (IBK), which has been associated with Moraxella bovis bacterium. Objective: To report the molecular characterization of the ocular bacterial microbiota and its relation to IBK in cattle in two dairy regions in Michoacán, Mexico. Methods: A total population of 761 bovines were evaluated, of which 17 (2.23%) showed symptoms of IBK. Thirty-eight bacterial isolates from ocular samples of bovines with IBK were characterized by Gram-staining and antimicrobial sensitivity. In addition, isolates were identified by sequence comparisons of the 16S ribosomal gene. Results: The genus Moraxella was one of the most abundant bacteria and M. bovoculi was the most predominant species. Conclusion: The bacterial isolates identified in eye lesions of cattle and associated to IBK are diverse. To the author´s knowledge, this is the first study on the subject in Mexico; therefore, more research is needed to estimate the incidence of IBK and determine its associated microbiota.
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