At 05:06 PM 10/22/99 -0500, Bill Adler wrote:
>I think I'm missing soemthing here. This manure is organic waste from the
guts of mammals. It's loaded with fecal organisms. Compost it and it's
still going to be loaded with organisms, e.g. Lysteria, possibly E.coli
0157, Campylobacter, C. Bot, etc. There should be lots of organisms,
especially spore formers, left in it and there is the potential the
products it is placed on will be contaminated with them if the manure
application is close to the date of harvest.
Hmm. I was under the impression that vegetables were still grown in 'dirt',
a substance that is known to carry all of the organisms specified! Should we
be alarmed?
Facetiousness aside, the composting replaces the original flora with a new
one, chiefly lactic acid bacteria and others.
Where is the risk in manure? It's in having too large a population of human
pathogens, due to composting not taking place long enough.
How long must composting take place to make manure safe? Good question, and
where's the research supporting it?
================================================================
Robert A. LaBudde, PhD, PAS, Dpl. ACAFS e-mail: ral@lcfltd.com
Least Cost Formulations, Ltd. URL: http://lcfltd.com/
824 Timberlake Drive Tel: 757-467-0954
Virginia Beach, VA 23464-3239 Fax: 757-467-2947
"Vere scire est per causae scire"
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craig k harris
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michigan state university
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