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首页> 外文期刊>Journal of Environmental Quality >Examination of Salmonella and Escherichia coli Translocation from Hog Manure to Forage, Soil, and Cattle Grazed on the Hog Manure-treated Pasture
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Examination of Salmonella and Escherichia coli Translocation from Hog Manure to Forage, Soil, and Cattle Grazed on the Hog Manure-treated Pasture

机译：沙门氏菌和大肠杆菌从猪粪转移到饲草处理过的牧场上放牧的草料，土壤和牛的检查

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Use of hog (Sus scrofa) manure as a fertilizer is a practical solution for waste re-utilization, however, it may serve as a vehicle for environmental and domestic animal contamination. Work was conducted to determine whether pathogens, naturally present in hog manure could be detected in cattle (Bos taurus) grazed on the manure-treated pasture, and whether forage contamination occurred. During two 3 mo summer trials manure was applied to yield 600 E. coli isolates. While Y. enterocolitica was absent from all samples, in both years S. enterica Derby and S. enterica Krefeld were found in most hog manure samples, but were only on forage samples in the second year. Salmonella enterica Typhimurium, absent from hog manure was present on some forage in the first year. Cattle feces and soil samples were consistently Salmonella negative. These contaminations could not be traced to manure application. During this study, Salmonella and E. coli found in hog manure had different RAPD genomic profiles from those found in the feces of cattle grazing on manure-treated pasture.
机译：使用猪粪（Sus scrofa）作为肥料是废物再利用的实用解决方案，但是，它可以作为环境和家畜污染的媒介。进行了工作，以确定是否可以在放牧后的牧场上放牧的牛（Bos taurus）中检测到猪粪中自然存在的病原体，以及是否发生了牧草污染。在两个3个月的夏季试验中，一次施肥或春季和秋季分两次施肥，每公顷均施以小于或等于124 kg的有效氮。分析了猪粪，饲料，土壤和牛粪便的样品中自然存在的沙门氏菌，小肠结肠炎耶尔森氏菌和大肠杆菌。为了追踪沙门氏菌在环境中的运动，将分离株鉴定为血清型并进行血清分型。通过随机扩增多态性DNA（RAPD）分析> 600种大肠杆菌分离株，检查了大肠杆菌从猪粪到土壤和牛的转移。尽管所有样本中均不存在小肠结肠炎耶尔森氏菌，但在这两年中，大多数猪粪便样本中都发现了小肠沙门氏菌德比和小肠沙门氏菌克雷菲尔德，但第二年仅在牧草样本中发现了小肠沙门氏菌。在第一年的一些饲料中出现了猪粪中缺少的鼠伤寒沙门氏菌。牛粪便和土壤样品始终呈沙门氏菌阴性。这些污染不能追溯到施用肥料。在这项研究中，猪粪中发现的沙门氏菌和大肠杆菌与在粪便处理过的牧场上放牧的牛粪便中发现的RAPD基因组谱不同。

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