2005•Socio-Environmental Systems ModelingOpen access
Fate of Escherichia coli O157:H7 in manure and amended soil: effects of cattle feeding, manure type and dairy management
Eelco Franz, Anne D. van Diepeningen, A.A. Visser, Wim J. Blok, A.H.C. van Bruggen
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Abstract
In the present study, we studied the effect of cattle diet on the survival of E. coli O157:H7 in manure from dairy cattle subjected to 6 different feeding regimes consisting of 3 different roughage types and 2 levels of crude protein concentrates. In addition, the rate of survival of E. coli O157:H7 in manure-amended soil as a function of manure type (manure vs. slurry) and dairy farm management (organic vs. conventional) was determined. The roughage type affected significantly the decline rate of E. coli O157:H7: decline was faster in manures with relative higher pH and fiber content. Decline was faster in slurry compared to manure and in organic slurry compared to conventional slurry.