Faculdade de Medicina Veterinaria e Zootecnia, Universidade de Sao Paulo, Professor Lineu Prestes Avenue, 2415, Butantã, São Paulo, 05508-900, Brazil.
Instituto de Ciências Biomedicas, Universidade de Sao Paulo, Brazil, Professor Lineu Prestes Avenue, 2415, Butantã, São Paulo, 05508-900, Brazil.
Braz J Microbiol. 2021 Sep;52(3):1589-1595. doi: 10.1007/s42770-021-00517-z. Epub 2021 May 8.
Brazil has a herd of over 9 million goats, and the northeast of Brazil is home to over 93% of this herd. Caprine mycoplasmosis are widely disseminated worldwide, being highly contagious with high rates of morbidity and mortality, causing considerable economic loss to goat herders. In addition, there has been a lack of research using molecular testing to monitor the health and detect Mollicutes in this herd in Brazil. Therefore, the aim of this study is to associate animal management with the presence of the caprine origin Mollicutes in goats, in the southwest region of the state of Bahia, Brazil. A cross-sectional study was conducted on twelve farms, and statistical analyses were performed to identify associations between the presence of Mollicutes and the management of goats. Molecular testing identified Mollicutes class, Mycoplasma agalactiae (Ma) and M. conjunctivae (Mc), in the samples analyzed. Statistical associations were observed between animals from intensive livestock facilities and the presence of Mollicutes in nasal samples and dairy ranch animals and the presence of Mollicutes in ocular samples and animals from extensive ranching sites and positive results of Mollicutes in genital samples. We conclude that mycoplasmas are present in goat herds in the southwestern region of Bahia, which supports the need for more focused studies of mycoplasmas throughout the country. Our research also demonstrated the presence of two important opportunistic bacteria, Mc and Ma, and, to the best of our knowledge, this is the first time that M. conjunctivae was detected in Brazilian goats by molecular testing.
巴西拥有超过 900 万头山羊,其中 93%以上的山羊集中在巴西东北部。山羊支原体病在世界范围内广泛传播,具有高度传染性,发病率和死亡率高,给山羊养殖户造成了巨大的经济损失。此外,在巴西,利用分子检测来监测该羊群的健康状况和检测摩拉氏菌的研究还很缺乏。因此,本研究旨在将动物管理与巴西巴伊亚州西南部山羊中摩拉氏菌的存在联系起来。在 12 个农场进行了横断面研究,并进行了统计分析,以确定摩拉氏菌的存在与山羊管理之间的关联。分子检测鉴定了在分析样本中存在的类支原体、无乳支原体(Ma)和结膜支原体(Mc)。在集约化养殖场的动物与鼻腔样本中摩拉氏菌的存在以及奶牛场动物与眼部样本中摩拉氏菌的存在之间观察到了统计学关联,而在集约化养殖场的动物与生殖道样本中摩拉氏菌的存在之间也观察到了统计学关联。我们得出结论,巴伊亚州西南部的山羊群中存在支原体,这支持了在全国范围内更集中地研究支原体的必要性。我们的研究还表明存在两种重要的机会性细菌,即 Mc 和 Ma,据我们所知,这是首次通过分子检测在巴西山羊中检测到结膜支原体。