OTC and bee mortality

Excerpts and links of interest to Beekeepers
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BDT123
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OTC and bee mortality

Unread post by BDT123 » April 9th, 2017, 4:39 pm

Charles Linder posted a link on Bee-L.
http://journals.plos.org/plosbiology/ar ... io.2001861
If I understand what I read, OTC changes bees gut microbiota and leaves them susceptible to other problems.
Anyone else read this? Comments?

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BDT123
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Re: OTC and bee mortality

Unread post by BDT123 » April 9th, 2017, 11:56 pm

OTC is oxytetracycline. I think I've seen the cousins south of the 49th refer to Tylosin. Same stuff I think. Correct me if that's a mistake.
Typically used to treat for EFB and AFB. In commercial ops, allegedly in a proactive and pre-emptive regime. I can not say, do not know, will not judge. Not walking in those shoes.
This may flange up with the threads regarding requirements to have vets provide prescriptions.
I honestly don't know if it does.
Brian

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Countryboy
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Re: OTC and bee mortality

Unread post by Countryboy » April 10th, 2017, 3:30 pm

No, Tylosin and OTC are not the same thing.
B. Farmer Honey
Central Ohio

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BDT123
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Re: OTC and bee mortality

Unread post by BDT123 » April 10th, 2017, 6:31 pm

Country, what is Tylosin? I have not seen it for sale up here.

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Countryboy
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Re: OTC and bee mortality

Unread post by Countryboy » April 10th, 2017, 6:42 pm

Tylosin tartrate, sold under the name Tylan. It is used to cure OTC resistant AFB. Tylosin is not used as a preventative for AFB, and it is not used to treat EFB. IIRC, residues can persist for several months after using it. For all intents and purposes, if you use it on a hive, wait until next year before harvesting honey from that hive.
https://en.wikipedia.org/wiki/Tylosin

Oxytetracycline (OTC) is a broad spectrum antibiotic that is used to cure AFB or EFB, and is also used as a preventative for AFB. The withdrawal period for OTC is something like 6 weeks.
B. Farmer Honey
Central Ohio

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