Dear Diana,
I suspected something like this because of the power of and strength in
numbers of microbioticals (OK, microbes). Those little buggers seem to be
able to eat anything. This is why wetlands are so successful in
decontaminating effluence flow off of some towns which experimented in it.
The water goes in at the top full of bad stuff and crap, etc., and all kinds
of chemicals and solid waste, and comes out the other end clean and
acceptable for ocean or lake. I wish I had the link on this but it was
before I had a computer. :)
Best,
Diann Dirks
Piedmont CG Project
Georgia
----- Original Message -----
From: "Diana Liu" <[email protected]>
To: <[email protected]>; "Winnemucca Community
Garden" <[email protected]>
Sent: Wednesday, February 18, 2009 5:48 PM
Subject: Re: [Community_garden] Medicated Manure
Hi, this is an article that I found, one of firsts that came up by googling:
Composting rapidly reduces levels of extractable oxytetracycline in manure
from therapeutically treated beef calves
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6V24-4HVDYM4-4&_user=2502780&_rdoc=1&_fmt=&_orig=search&_sort=d&view=c&_acct=C000057629&_version=1&_urlVersion=0&_userid=2502780&md5=6bbdafe9dbea7a71cf23b5043228da94
I am not sure I understand how they were "composting". According to the
abstract, the manure "were mixed with straw and woodchips, and aliquots of
the subsequent mixtures were treated in laboratory composters for 35 days.
In addition, aliquots of the OTC-containing mixture were incubated at 25 °C
or sterilized followed by incubation at 25 °C."
What I understood from the abstract (not the article of course, which I am
interested in reading) is that at the end, they were not sure whether OTC
had entirely disappeared, but from the level of bacteria (sensitive and
resistant to OTC) that OTC was supposed to kill, they thought that OTC might
be rendered biological inactive. This I take is their indirect evidence that
the manure may be safe to use since OTC had lost its effectiveness in
killing the bacteria, since they found a 30 fold (?) increase of OTC
sensitive bacteria and a drop in OTC resistant bacteria. Does this seem to
make sense?
Of course, this occurred in the laboratory. I think that it would be too
much efforts to try their way of composting. I don't know the normal level
of antibiotics or OTC being used in livestock. So I guess if resources are
limited, and we have to use the medicated manure, then may be this will
work? Can this laboratory condition be replicated in nature?
How much manure used in organic gardens is medicated?
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
Kindness in words creates confidence.
Kindness in thinking creates profoundness.
Kindness in giving creates love.
- Lao Tzu
“Courage is what it takes to stand up and speak;
courage is also what it takes to sit down and listen.”
- Winston Churchill
~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~
--- On Wed, 2/18/09, Winnemucca Community Garden <[email protected]>
wrote:
From: Winnemucca Community Garden <[email protected]>
Subject: [Community_garden] Medicated Manure
To: [email protected]
Date: Wednesday, February 18, 2009, 2:20 PM
Hey everybody,
Manure from horses, cows and other rhuemanids are a valuable resource to
gardening, especially an organic garden. However one concern with using this
manure is the antibiotic/steroid residues that get passed through such
animals,
and end up fertilizing our vegitation. Does anyone know of any methods that
can
'purify' medicated manure , or any research that they can refer me to?
I've tried looking at some scientific journals but the terminology is a bit
heavy. Can someone put the stuff in laymens terms?
Peace, Love and Justice
Jordon H.
Winnemucca Community Garden
151 W. McArthur Ave.
Winnemucca,
NV 89445
775.623.2333
http://winngarden.org
--- On Wed, 2/18/09, [email protected]
<[email protected]> wrote:
From: [email protected]
<[email protected]>
Subject: Community_garden Digest, Vol 667, Issue 4
To: [email protected]
Date: Wednesday, February 18, 2009, 9:03 AM
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The American Community Gardening Association listserve is only one of ACGA's
services to community gardeners. To learn more about the ACGA and to find
out how to join, please go to http://www.communitygarden.org
To post an e-mail to the list: [email protected]
To subscribe, unsubscribe or change your subscription:
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_______________________________________________
The American Community Gardening Association listserve is only one of ACGA's
services to community gardeners. To learn more about the ACGA and to find out
how to join, please go to http://www.communitygarden.org
To post an e-mail to the list: [email protected]
To subscribe, unsubscribe or change your subscription:
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