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首页> 外文期刊>Journal of dairy research >Evidence of no protection for a recurrent case of pathogen specific clinical mastitis from a previous case
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Evidence of no protection for a recurrent case of pathogen specific clinical mastitis from a previous case

机译：与先前病例相比，对于复发性病原体特异性临床乳腺炎没有任何保护的证据

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摘要

The objective of this study was to determine whether the occurrence of a previous case of pathogen-specific clinical mastitis (CM) protects Holstein dairy cows against a recurrent case. Pathogens studied were Escherichia coli, Staphylococcus aureus, Staphylococcus spp., Streptococcus spp., Klebsiella spp., and Trueperella pyogenes. A total of 40 864 lactations (17265 primiparous and 23 599 multiparous) from 19 835 cows from 5 large, high milk producing New York State dairy herds were analysed. We estimated the effects of parity, calving diseases, milk yield, current season and number of CM cases in the previous lactation on the risk of a first CM case using generalised linear mixed models with a log link and Poisson error distribution. The aforementioned risk factors and the occurrence of previous cases of pathogen-specific CM within the current lactation were evaluated as risks for second and third cases of pathogen-specific CM. Cows with more CM cases in the previous lactation were at greater risk of pathogen-specific CM in the current lactation. Multiparous cows were at greater risk of a second CM case if they had suffered from a first CM case that was caused by the same pathogen as the second case. In contrast, a second CM case generally put cows at greater risk of a third case, irrespective of whether the third case was caused by the same or a different pathogen. Our results showed that a previous case of pathogen specific CM does not generally protect against a recurrent case.
机译：这项研究的目的是确定以前发生的病原体特异性临床乳腺炎（CM）是否能保护荷斯坦奶牛免于复发。研究的病原体是大肠杆菌，金黄色葡萄球菌，葡萄球菌，链球菌，克雷伯菌和化脓性单胞菌。分析了来自5个产奶量高的纽约州奶牛场的19 835头母牛的40 864次泌乳（初产17265例，多胎23 599例）。我们使用具有对数链接和泊松误差分布的广义线性混合模型，估计了胎次，产犊疾病，产奶量，当前季节和先前泌乳中CM病例数对第一个CM病例风险的影响。将上述危险因素和本次泌乳中以前病原体特异性CM的发生情况作为第二和第三例病原体特异性CM的风险进行评估。在之前的泌乳中，有更多CM病例的母牛在当前泌乳中更有病原体特异性CM的风险。如果多头母牛患有由与第二例相同的病原体引起的第一例CM病例，则第二例CM病例的患病风险更高。相比之下，第二例CM病例通常使母牛处于第三例的更大风险中，而不论第三例是由相同还是不同的病原体引起的。我们的结果表明，以前的病原体特异性CM病例通常不能预防复发病例。

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  • 来源
    《Journal of dairy research》 |2016年第1期|72-80|共9页
  • 作者

    Elva Cha; Julia Hertl; Ynte Schukken; Loren Tauer; Frank Welcome; Yrjoe Groehn;

  • 作者单位

    Section of Epidemiology, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA,Department of Diagnostic Medicine/Pathobiology, College of Veterinary Medicine, Kansas State University, K-221 Mossier Hall, Manhattan, KS 66506-5802, USA;

    Section of Epidemiology, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA;

    Section of Epidemiology, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA,GD Animal Health, Deventer, The Netherlands;

    Charles H. Dyson School of Applied Economics and Management, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853, USA;

    Quality Milk Production Services, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA;

    Section of Epidemiology, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Mastitis; pathogen; risk; recurrent mastitis;

    机译：乳腺炎;病原;风险;复发性乳腺炎;

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