Département de Biochimie et de Microbiologie, Faculté des Sciences et de Génie, Université Laval, Québec, Canada QC G1V 0A6.
Bioresour Technol. 2010 Jun;101(11):4048-55. doi: 10.1016/j.biortech.2010.01.009. Epub 2010 Feb 4.
Hog production has been intensified in Eastern Canada, by 50% over the last 20years. Wastes are now managed with conventional production systems (slatted floor), litter systems or source separation systems. We studied the presence of total and fecal coliforms, Campylobacter, Clostridium perfringens, Enterococcus, Escherichia coli, Salmonella, Yersinia enterocolitica, Giardia and Cryptosporidium in the manure of all of these production systems. The concentrations of the studied zoonotic pathogens did not differ between the conventional and the litter systems investigated. The source separation system yielded separated solid and liquid fractions. Total and fecal coliforms, C. perfringens, Enterococcus, E. coli, and Y. enterocolitica were found in the solids and the liquid fractions of a source separation system.Campylobacter species were not detected in the liquid fractions. Zoonotic pathogens are therefore, found in the manure of Eastern Canadian hog finishing houses equipped either with conventional, sawdust litter or source separation systems. Pathogens inactivation will require changes in manure management practices or the use of manure disinfection methods.
在过去的 20 年中，加拿大东部的生猪养殖集约化程度提高了 50%。废物现在采用传统的生产系统（漏缝地板）、垫料系统或源头分离系统进行管理。我们研究了这些生产系统的粪便中总大肠菌群和粪便大肠菌群、弯曲杆菌、产气荚膜梭菌、肠球菌、大肠杆菌、沙门氏菌、小肠结肠炎耶尔森菌、贾第虫和隐孢子虫的存在情况。在所研究的人畜共患病病原体的浓度在传统系统和垫料系统之间没有差异。源头分离系统产生了分离的固体和液体部分。总大肠菌群和粪便大肠菌群、产气荚膜梭菌、肠球菌、大肠杆菌和小肠结肠炎耶尔森菌存在于源头分离系统的固体和液体部分中。液体部分未检测到弯曲杆菌属。因此，在配备传统、木屑垫料或源头分离系统的加拿大东部育肥猪舍的粪便中发现了人畜共患病病原体。要实现病原体失活，需要改变粪便管理做法或使用粪便消毒方法。
