基于牧场的奶牛养殖系统中与差异脲原体相关的奶牛和农场层面风险因素评估——一项实地研究。
Assessment of cow and farm level risk factors associated with Ureaplasma diversum in pasture-based dairy systems - A field study.
作者信息
Nascimento-Rocha Josefa M, Oliveira Benedito D DE, Arnhold Emannuel, Pôrto Regiani N G, Lima Svetlana F, Gambarini Maria Lucia
机构信息
Instituto Tocantinense Presidente Antonio Carlos, Rua 02, s/n, Quadra 07, Jardim dos Ypes, 77500-000 Porto Nacional, TO, Brazil.
College of Veterinary and Animal Sciences, Federal University of Goias, Campus Samambaia, Av. Esperança, s/n, Campus Universitario, 74690-900 Goiania, GO Brazil.
出版信息
An Acad Bras Cienc. 2017 Jul-Sep;89(3):1779-1783. doi: 10.1590/0001-3765201720160813. Epub 2017 Aug 31.
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.
基于奶牛个体水平（即颗粒性外阴阴道炎[+GVV]、年牛奶产量[4500千克或以上]、怀孕情况、瘤牛优势[+Bos Taurus]、体况评分[至少2.5分]、大肠杆菌同时呈阳性[+E.coli]）以及农场水平（即挤奶室卫生状况[-挤奶室]、粪堆位置和后备母牛），将1238头奶牛阴道黏液中解脲脲原体的潜在风险因素纳入多变量逻辑回归模型。41.1%的样本中存在解脲脲原体。解脲脲原体的独立风险因素为+GVV（优势比[OR]，1.31）；+支原体属（OR，5.67）；年牛奶产量（4500千克或以上）（OR，1.99）；+瘤牛（OR，1.68）；+大肠杆菌（OR，4.96）；-挤奶室（OR，2.31）；以及后备母牛（OR，1.89）。解脲脲原体阴道定植与支原体属、大肠杆菌和怀孕奶牛数量密切相关。
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