Presence of zoonotic pathogens in physico-chemically characterized manures from hog finishing houses using different production systems

Authors: Létourneau, ValérieDuchaine, CarolineCôté, Caroline; Letellier, Ann; Topp, Edward; Massé, Daniel
Abstract: Hog production has been intensified in Eastern Canada, by 50% over the last 20 years. 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.
Document Type: Article de recherche
Issue Date: 4 February 2010
Open Access Date: Restricted access
Document version: VoR
This document was published in: Bioresource Technology, Vol. 101 (11), 4048–4055 (2010)
Elsevier Applied Science
Alternative version: 10.1016/j.biortech.2010.01.009
Collection:Articles publiés dans des revues avec comité de lecture

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