All Discussions Tagged 'coli' - Aquaponic Gardening2024-03-29T00:35:14Zhttps://aquaponicgardening.ning.com/forum/topic/listForTag?tag=coli&feed=yes&xn_auth=noFDA Fish and Fishery Products Hazards and Controls Guidance Fourth Edition November 2011tag:aquaponicgardening.ning.com,2012-09-19:4778851:Topic:3934722012-09-19T17:51:11.497ZCraig Mullinshttps://aquaponicgardening.ning.com/profile/CraigMullins10
<p><a href="http://www.fda.gov/food/guidancecomplianceregulatoryinformation/guidancedocuments/seafood/fishandfisheriesproductshazardsandcontrolsguide/default.htm">http://www.fda.gov/food/guidancecomplianceregulatoryinformation/guidancedocuments/seafood/fishandfisheriesproductshazardsandcontrolsguide/default.htm</a></p>
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<p>AWesome book to keep next to you at all times</p>
<p><a href="http://www.fda.gov/food/guidancecomplianceregulatoryinformation/guidancedocuments/seafood/fishandfisheriesproductshazardsandcontrolsguide/default.htm">http://www.fda.gov/food/guidancecomplianceregulatoryinformation/guidancedocuments/seafood/fishandfisheriesproductshazardsandcontrolsguide/default.htm</a></p>
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<p>AWesome book to keep next to you at all times</p> Feeding Duckweed and Azolla growing it safely.tag:aquaponicgardening.ning.com,2012-04-11:4778851:Topic:3192302012-04-11T12:47:29.865ZBrian Graffiushttps://aquaponicgardening.ning.com/profile/BrianGraffius
<p>At a recent aquaculture seminar hosted by a local Georgia College, they said Azolla was a very good food plant for fish and was prefered to Duck Weed. I have a sample of it and I have been experimenting with it. I also noticed it floating in a local pond, so I have a local natural source. </p>
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<p>I wanted to see how fast it grows, so I put a few plants in a bucket that had about 1/2 gallon of water and a small piece of horse manuer (a manuer tea if you will). I forgot about the…</p>
<p>At a recent aquaculture seminar hosted by a local Georgia College, they said Azolla was a very good food plant for fish and was prefered to Duck Weed. I have a sample of it and I have been experimenting with it. I also noticed it floating in a local pond, so I have a local natural source. </p>
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<p>I wanted to see how fast it grows, so I put a few plants in a bucket that had about 1/2 gallon of water and a small piece of horse manuer (a manuer tea if you will). I forgot about the plant for a week and when I went back it the population had exploded. The surface of the water was completely covered in a thick blanket of the stuff. Without the manuer, the growth is very slow. </p>
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<p>Manuer seems to present a host of problems an aquaponic system such as e coli and perhaps liver flukes among other really nasty hazards. I thought this would be a great place to talk about the hazards of using manuer to those that are new to aquaponics. Manuer is very commonly used in gardens and I can see someone not connecting the dots and do something like grow duck weed or azolla in manuer tea and then feed that to the fish. What about getting these floating plants from local sources, are there other things to worry about with those. How do you know when it comes to feed plants that they are safe and clean.</p>
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<p>As for azolla, I wonder what other nutrient I can add to the water to get the same kind of growth, that will still allow me to feed it to tilapia. Any ideas, I will experiment and post the results. Azolla is used in several countries for green manuer in dirt gardening. Growing azolla in manuer tea might just have an application for traditional gardening as a source for green manuer. I am still researching, but it is also used as a water conditioner and purifier. Will it kill e coli? So far I have not been able to find that it does.</p> Aquaponics, worms and E. colitag:aquaponicgardening.ning.com,2011-10-05:4778851:Topic:2280542011-10-05T23:07:58.419ZKobus Joostehttps://aquaponicgardening.ning.com/profile/KobusJooste
<p>I have been made aware of a section in the latest newsletter of an aquaponics trainer making some rather interesting statements around the risk of introducing "deadly" E. coli HO157:H7 into aquaponics systems through the introduction of worms.</p>
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<p>Like most promotional material, it contains enough reference to some form of correct base statement to make their argument appear compelling, but I have found the way that the section was written distressing in many ways. On one front,…</p>
<p>I have been made aware of a section in the latest newsletter of an aquaponics trainer making some rather interesting statements around the risk of introducing "deadly" E. coli HO157:H7 into aquaponics systems through the introduction of worms.</p>
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<p>Like most promotional material, it contains enough reference to some form of correct base statement to make their argument appear compelling, but I have found the way that the section was written distressing in many ways. On one front, we are trying our level best to ensure food safety and hygene in our units and to educate people on the safety of aquaponic production methods. To have someone from within the community write something down the line of "if you dare put worms in your system you run a very real risk of introducing a deadly pathogen into aquaponics" is not conducive to building a fair and realistic impression of aquaponic production methods. Worms in media beds have been in use for many years outside of the design of the group in question, with no reports of any health issues.</p>
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<p>The inference made was that (without stating how many worm growers use cattle poo) red wrigglers are likely or potentially all grown in manure from corn fed cattle and this all contains the "man made" (?????!) strain of E. coli that will then most likely survive the transfer from worm to your system where you will contaminate your crops, your family or your customers. If you are extra unlucky, a fly from a pasture containing corn fed cattle poo will also do the trick (then why bash the worms?) if they can make the trip in under 10 seconds. </p>
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<p>The article would have had more use if it simply said something down the line of "pick your worm supplier carefully - if you are cautious about E. coli, steer clear of using worm growers that cannot guarantee that their worms were not fed corn-fed cow poo from feedlots." I do not know what the ratio is of worm producers that potentially use this feed method compared to those that do not, but if it is the case that very few follow this practice, this article borders on reckless. Then one can write follow-ups warning people on the next one in a gazilion risk such as a bird-flu contaminated duck landing in your fish tank. As stated before, in theory, the conditions described in the text can potentially occur. Just as, in theory, a monkey can sit down in front of a typewriter, hammer away at it and write something recognisable. Not impossible, but likely? </p>
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<p>I wrote a blog a while ago about the responsibility of perceived role models in the industry related to statements made and perceptions created from a "credible" source. This type of statement was exactly what I was talking about. Not worth the negativety and not worth the potential bad press and poor PR for what many aquaponic producers see as a staple - media filled beds with worms in them (is there a reason for this?). As a scientist, I would like to see some concrete evidence related to instances of the scenario described having been observed at worm farms and in aquaponic systems. If no such data exists, is this statement fair and accurate? Why was it made? I do not want to appear to downright rubbish their concerns, but I will appreciate a percentage risk description to back up this claim.</p> Fish n' e colitag:aquaponicgardening.ning.com,2011-04-23:4778851:Topic:962712011-04-23T18:53:50.160ZAaronhttps://aquaponicgardening.ning.com/profile/Aaron379
I have been disecting Tanya sawyers amazing discussion on AP on a survival podcast (featured on this site). She mentioned that e coli aren't an issue in fish b/c fish don't harbor them in their digestive tract. Did I misunderstsnd her? True or false?
I have been disecting Tanya sawyers amazing discussion on AP on a survival podcast (featured on this site). She mentioned that e coli aren't an issue in fish b/c fish don't harbor them in their digestive tract. Did I misunderstsnd her? True or false?