[USCC] Growth and survival of non-O157:H7 Shiga-toxin-producing Escherichia in cow manure

[Steve Diver]

This article in the current edition (January 2007) of Journal of Applied
Microbiology contains relevent findings and literature reviews on
"Shiga-toxin-producing Escherichia coli" (STEC) survival in static
piles of dairy manure vs turned piles of dairy manure.

The managed piles were turned three times at 7 day intervals,
turned with a pitchfork.  The piles were two cubic meters in size.
The authors used these methods to mimic real-life farm
management vs bench-scale testing methods.

E. coli (eight strains) was added to the manure piles by inoculation.

The green-fluorescent-protein-labelled STEC strains were detected
up to 42 days in the periphery of turned manure heaps and 90 days
in unturned ones.


Growth and survival of non-O157:H7 Shiga-toxin-producing Escherichia
coli in cow manure
B. Fremaux, M.L. Delignette-Muller, C. Prigent-Combaret, A. Gleizal and 
C. Vernozy-Rozand
Journal of Applied Microbiology
Volume 102 Issue 1 (January 2007) Page 89 -
http://dx.doi.org/10.1111/j.1365-2672.2006.03059.x


In addition to "incolution" studies, it would be helpful to read studies
that survey existing farm managed dairy manures and publish results
as emperical data.... additionally comparing feed-based vs
grass-based dairy management.

Steve Diver