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  1. #1
    Join Date
    Apr 2011
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    Wright, MN, USA
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    Default Resistannce to the antibiotic tetracycline in Honeybees

    Long-Term Exposure to Antibiotics Has Caused Accumulation of Resistance Determinants in the Gut Microbiota of Honeybees

    We found that 50 years of using antibiotics in beekeeping in the United States has resulted in extensive tetracycline resistance in the gut microbiota. These bacteria, which form a distinctive community present in healthy honeybees worldwide, may function in protecting bees from disease and in providing nutrition. In countries that do not use antibiotics in beekeeping, bee gut bacteria contained far fewer resistance genes. The tetracycline resistance that we observed in American samples reflects the capture of mobile resistance genes closely related to those known from human pathogens and agricultural sites. Thus, long-term treatment to control a specific pathogen resulted in the accumulation of a stockpile of resistance capabilities in the microbiota of a healthy gut. This stockpile can, in turn, provide a source of resistance genes for pathogens themselves. The use of novel antibiotics in beekeeping may disrupt bee health, adding to the threats faced by these pollinators.
    http://mbio.asm.org/content/3/6/e00377-12.full


    Nothing all that new, just the general over use of antibiotics and the usual problems that follow. mbio has an open access policy so you can read the full article in the link above.

  2. #2
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    I wonder what they would have found had they lloked at bees from my hives, since I do not use TM or Tylosin.
    Mark Berninghausen To combat Ebola, please consider supporting http://www.doctorswithoutborders.org


  3. #3
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Quote Originally Posted by sqkcrk View Post
    I wonder what they would have found had they lloked at bees from my hives, since I do not use TM or Tylosin.
    but does the person you get your queens from also not use antibiotics? If what they say is really true, then why hasn't more resistant afb shown up? I find much of the reaserch being done to be interesting, and great pieces of information to be used in other articles, but not of much use to me.
    mike syracuse ny
    I went to bed mean, and woke up meaner. Marshal Dillon

  4. #4
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Good question Mike. I bet they do. I know one does, buyt don't know if he does in the queen rearing part of his operation.
    Mark Berninghausen To combat Ebola, please consider supporting http://www.doctorswithoutborders.org


  5. #5
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Quote Originally Posted by wildbranch2007 View Post
    but does the person you get your queens from also not use antibiotics?.... but not of much use to me.
    How it is related to the article above? Are you thinking that queen could transfer bacterial resistance to tetracycline to her daughters? Are you familiar with Lamarck?

    Correction:
    I think I did not pay attention to the fact that new queen may introduce bad bacteria via pup. wildbranch2007 I apologize for my "attack". It was not nice. Sergey
    Last edited by cerezha; 11-13-2012 at 03:39 PM.
    Серёжа, Sergey

  6. #6
    Join Date
    Apr 2008
    Location
    Leominster, MA USA
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    174

    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Bees emerge sterile...gut microbes in larvae are shed along with intestinal lining before pupation.

    After emergence, bees get inoculated with culture from the hive. They can only get what is available. Inoculation likely happens orally, through cleaning, shared food, etc.

    Where does the queen poop? Who cleans up after her and the others? Yes, we have seen workers poop in an observation hive that had only been closed for a few hours when poop was observed...another worker cleaned it up so fast it was almost like it hadn't happened.

    If there is antibiotic resistance in the gut microbes of queen, this is part of what the workers will get when they are inoculated. They probably also get cultures from other workers. I've been puzzling through this for a while, trying to figure out where the gut microbes originate and how much effect in population as a whole comes from queen to workers, workers to queen, etc.

    When it comes to the queen's poop, or poop in general, and how the colony is inoculated, there is a dearth of information.

    You can read a lot about nosema but not so much about the benefits of healthy poop in a colony.

    Many of us can probably sing the Activia jingle and have heard about the miracles of the fecal transplant for humans afflicted with C. difficile...bees aren't so different from us.

    Microbes rule the world...for bees, too.

    We aren't talking about antibiotic resistance in bees but in the microbial cultures that are shared throughout the colony.

    Ramona

  7. #7
    Join Date
    Jul 2006
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    Worcester County, Massachusetts
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Sergey, you should read this study carefully......

    Deknow

  8. #8
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Quote Originally Posted by deknow View Post
    Sergey, you should read this study carefully......
    Deknow
    I think I did not pay attention to the fact that new queen may introduce bad bacteria via pup. wildbranch2007 I apologize for my "attack". It was not nice. Sergey
    Серёжа, Sergey

  9. #9
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    May 2011
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    Porcupine Plain, Saskatchewan, Canada
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Quote Originally Posted by wildbranch2007 View Post
    If what they say is really true, then why hasn't more resistant afb shown up?
    My mentor said I think it was in the west indies that some of the bees have developed a degree of resistance to American Foulbrood because no one really treated for it there for quite a while.


    Nathan
    Good enough is perfect - Joel Salatin

  10. #10
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    Dec 2005
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    Brasher Falls, NY, USA
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Bees have been bred that are resistant to AFB thru hygenic behavior. Bees w/ a high degree of hygenic behavior are resistant to AFB by their behavior.

    What wildbranch asked about was resistant AFB, AFB which is resistant to antibiotic treatment. Two different things.
    Mark Berninghausen To combat Ebola, please consider supporting http://www.doctorswithoutborders.org


  11. #11
    Join Date
    Dec 2006
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    St. Albans, Vermont
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    5,497

    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    Quote Originally Posted by sqkcrk View Post
    I wonder what they would have found had they lloked at bees from my hives, since I do not use TM or Tylosin.
    Not much if you don't have any AFB present. If you do, it depends on where it came from. If you brought in comb from a contaminated source, then you would know, one way or another if your AFB was resistant to TM.

    I do know that TM resistant AFB is around. A large number of nucleus colonies hit the market in New England, summer of 2011. Lots of disease problems...AFB, EFB, and SHB en masse. I confronted seller, telling him he shouldn't be dumping Tylan dependant bees on unsuspecting hobby beekeepers. He tried to weasel out of the issue by telling me he didn't use the product, as it was against BMP of Florida. Poppy-cock! Maybe I wasn't supposed to see it, but his inspection report...which I was shown, has his AFB being severely resistant to TM. As the northern hobbyists don't even know what Tylan is...once they stopped the treatments, their new bees crashed...and spread their diseases.

    wildbranch...it won't matter to you, unless bees like these are set down next to one of your apiaries.

  12. #12
    Join Date
    Jan 2010
    Location
    Alachua County, FL, USA
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    Default Re: Resistannce to the antibiotic tetracycline in Honeybees

    We do not test for antibiotic resistance. Please be honest. We do test for AHB (Africanized)
    Worse than AFB resistance, use of any antibiotics allows AFB, EFB, Nosema to make bees sick.
    Symbionts as Major Modulators of Insect Health: Lactic Acid Bacteria and Honeybees
    Honeybees possess an abundant, diverse and ancient LAB microbiota in their honey crop with beneficial effects for bee health, defending them against microbial threats. Beekeeping management practices can negatively impact this microbiota. The crop microbiota of A. mellifera is composed of 13 bacterial species within the genera Lactobacillus and Bifidobacterium [16], [17], [18] and it plays a key role in the production of honey [16] and bee-bread [19], long term stored food for both adult honeybees and larvae. We have demonstrated by both in vitro and in vivo studies that the LAB microbiota in A. mellifera inhibit one important honeybee pathogen, the bacterial brood pathogen Paenibacillus larvae that is the cause of the brood disease American foulbrood (AFB)

    To dumb it down – antibiotics given to bees before there is a problem can cause a problem!

    http://www.plosone.org/article/info%..._utmk=60534318
    http://www.beesource.com/forums/show...ause-a-problem
    americasbeekeeper.com
    beekeeper@americasbeekeeper.com

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