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首页> 外文期刊>Animal Science Journal >Exfoliation rate of mammary epithelial cells in milk on bovine mastitis caused by Staphylococcus aureus is associated with bacterial load
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Exfoliation rate of mammary epithelial cells in milk on bovine mastitis caused by Staphylococcus aureus is associated with bacterial load

机译：由金黄色葡萄球菌引起的牛奶中乳腺乳腺炎乳腺癌的剥离率与细菌负荷有关

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摘要

The exfoliation rate of mammary epithelial cells (MECs) in milk is affected by physiological, breeding and environmental factors. Little is known about the relationship between the MEC exfoliation into milk and mammary-infected Staphylococcus aureus (S. aureus) load on bovine mastitis caused by S. aureus. The aim of this study was to investigate the relationship between S. aureus load and the proportion of MEC exfoliation in milk using five substantial bovine mastitis models. In 64 randomly extracted milk samples from udders at 3-21days after S. aureus infusion, there were various samples with different numbers of S. aureus counts and somatic cell counts. No significant correlations were found between the S. aureus counts and somatic cell count (r=0.338). In contrast, a significant correlation was noted between S. aureus counts and the proportion of cytokeratin-positive cells in the milk from the infused udders (r=0.734, P&0.01). In conclusion, the increasing MEC exfoliation rate in milk from mastitis udders caused by S. aureus may contribute to reduced milk yield.
机译：乳汁中乳腺上皮细胞（MEC）的剥离率受到生理，育种和环境因素的影响。关于MEC剥离到牛奶和乳腺感染的葡萄球菌的金黄色葡萄球菌造成的牛乳腺炎的载荷的关系很少。本研究的目的是探讨S.金黄色葡萄球菌负荷与牛奶中MEC剥离比例的关系，使用五牛奶炎模型。在S.UUSTUS输注后3-21天的64例随机提取的牛奶样品在3-21天内，有各种样品，不同数量的S.UUREUS计数和体细胞计数。在S.UUREUS计数和体细胞计数（R = 0.338）之间没有发现显着的相关性。相比之下，在牛奶糖计数和来自牛奶中的细胞角蛋白阳性细胞的比例从注入的udders（r = 0.734，p＆amp; 0.01）之间存在显着的相关性。总之，由S.金黄色葡萄球菌引起的乳腺炎中牛奶中的MEC剥离率增加可能有助于降低牛奶产量。

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