Hen with salpingitis - doxycycline or amoxicillin for antibiotic treatment and how do you get them?

theboydnest

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Mar 7, 2025
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I have a 2 year old hen that recently laid a lash egg. She has been eating and drinking and acting normally. When I checked her vent it looked okay, maybe a little prolapsed, but when I pushed on her abdomen some pus did come out of the vent. I was able to get amoxicillin and have been giving her the weight based dose twice a day for the past week. She has been laying eggs, but they have a very thin shell, so thin that they break when she steps on them.

From what I have read amoxicillin can be good for salpingitis, but this does not treat E. Coli if the salpingitis is caused by E. Coli. What have people typically treated salpingitis with? And if doxycycline, what was the dose? Anyone used fish doxy or the bird supply doxy for chickens to avoid having to get a vet prescription?
 
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Amoxicillin can indeed treat E.coli bacteria in addition to others. Doxycycline treats many things, but in chickens may be better for mycoplasma respiratory disease. Although enrofloxacin or Baytril is better for salpingitis, it is not approved for chickens by the FDA. Some do use it as long as you are aware it is not approved and requires a long egg withdrawal time. Dosage of enrofloxacin is 10mg per kg (every 2.2 pounds) every 12 hours for 5 days. It comes in 10% liquid and 10mg tablet form from Jedds.
https://jedds.com/products/enroflox...q-IRLlLDokkulV8rf5Vztu6QnQKceLHVwoi3-xOxRhq6s

Read post 3 here for dosage:
https://www.backyardchickens.com/threads/enrofloxacin-dosage.1187174/
 
Amoxicillin can indeed treat E.coli bacteria in addition to others. Doxycycline treats many things, but in chickens may be better for mycoplasma respiratory disease. Although enrofloxacin or Baytril is better for salpingitis, it is not approved for chickens by the FDA. Some do use it as long as you are aware it is not approved and requires a long egg withdrawal time. Dosage of enrofloxacin is 10mg per kg (every 2.2 pounds) every 12 hours for 5 days. It comes in 10% liquid and 10mg tablet form from Jedds.
https://jedds.com/products/enroflox...q-IRLlLDokkulV8rf5Vztu6QnQKceLHVwoi3-xOxRhq6s
Thank you! Would you recommend switching to this or continuing with amoxicillin to see if she improves?
 
The dosage for amoxicillin is 250 mg twice a day for 7-10 days for a 5 pound chicken. If you already have enrofloxacin, you could start some. Some people prefer to give amoxicillin since it is less of an egg withdrawal time, but enrofloxacin is a bit stronger. It also takes a week or 10 days to get it.
 

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