Assessment of cow and farm level risk factors associated with Ureaplasma diversum in pasture-based dairy systems - A field study

Potential risk factors for Ureaplasma diversum in the vaginal mucus of 1,238 dairy cows were included in a multivariate logistic regression model, based on the cow level (i.e., granular vulvovaginitis [+GVV], yearly milk production [4500 kg or more], pregnancy, predominance of Bos taurus [+Bos Tauru...

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Bibliographic Details
Published in:Anais da Academia Brasileira de Ciências 2017-07, Vol.89 (3), p.1779-1783
Main Authors: Nascimento-Rocha, Josefa M, Oliveira, Filho, Benedito D DE, Arnhold, Emannuel, Pôrto, Regiani N G, Lima, Svetlana F, Gambarini, Maria Lucia
Format: Article
Language:English
Subjects:
dairy cow
exposure factors
genital ureaplasmosis
mollicutes
MULTIDISCIPLINARY SCIENCES
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Summary:Potential risk factors for Ureaplasma diversum in the vaginal mucus of 1,238 dairy cows were included in a multivariate logistic regression model, based on the cow level (i.e., granular vulvovaginitis [+GVV], yearly milk production [4500 kg or more], pregnancy, predominance of Bos taurus [+Bos Taurus], score of corporal condition [at least 2.5], concomitant positivity for Escherichia coli [+E.coli]), and farm level i.e., milking room hygiene (-Milking room), dunghill location, and replacement female). Ureaplasma diversum was present in 41.1% of the samples. Independent risk factors for U. diversum were +GVV (odds ratio [OR], 1.31); +Mycoplasma spp (OR, 5.67); yearly milk production (4500 kg or more) (OR, 1.99); +Bos taurus (OR, 1.68); +E. coli (OR, 4.96); -milking room (OR, 2.31); and replacement females (OR, 1.89). Ureaplasma diversum vaginal colonization was strongly associated with Mycoplasma spp., E. coli, and number of pregnant cows.
ISSN:0001-3765
1678-2690
1678-2690
DOI:10.1590/0001-3765201720160813