Input on deworming chickens and ducks

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Songster
Premium Feather Member
Jul 2, 2023
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Shenandoah Valley, VA
Hello - here's some background on my question:

I lost a chicken a couple of weeks ago. After a state lab necropsy, it appears to be cancer, but in the process they also included this note in the interim report:

“This hen was negative for Avian influenza and two species of Mycoplasma. A parasite screen was run on feces, which found a small amount of coccidia (likely not clinically significant) and Capillaria (threadworm)…These worms can be controlled with fenbendazole and other dewormers. One fenbendazole product is Aquasol, which is approved for laying hens. For this product a withdrawal period is not required before the eggs can be eaten if it is given according to directions. No other product is FDA approved for laying hens, and it is recommended to work with a veterinarian to determine proper dose and withdrawal period for other dewormers.”

Out of caution since it didn't seem to be the main cause but was present to some degree, I thought I should deworm the flock. I only have 8 chickens plus 6 runner ducks. (Note that I do have a vet, but she's answering questions out of the goodness of her heart (I'm not booking appointments in other words) and I don't want to infringe too much on her. She is going to assist with dosing and whatnot...ANYWAY) -

I have read various things about threadworm and while the state lab report said that was the product to use, other sites say it isn't effective. That's confusing and annoying thing number one.

Confusing and annoying thing number two, is I have read molting hens shouldn't have this medication - well it's fall and while most of my birds look fine I do have one obviously actively growing in new feathers. So hold off on the flock until that's done?

Confusing and annoying thing number three...I can easily dose the chickens in their water once the amount is calculated, as they pretty much have the one source. They do have access to a pond but they typically drink from their waterer. The ducks, however, have multiple sources - a pond, a couple of buckets, etc. So does anyone know if there is a way to determine how much medication could be given to each individual duck (say, from a dropper onto peas for each of them)?

I have learned so much about the health and wellbeing of my flocks but still always learning. Any advice or input would be welcome!
 
Capillary/threadworms are one of the more dangerous worms in chickens. Aquasol, a weak solution of fenbendazole used in the water that does not require an egg withdrawal, does not treat capillary worms. The two wormers I recommend will treat capillary worms. They are Valbazen 1/2 ml given orally to each 4-6 pound chicken, and then repeated in 10 days. Or use SafeGuard Liquid Goat Wormer or Equine paste 10% fenbendazole. Dosage of either is 1/4 ml per pound of weight given orally to each chicken for 5 consecutive days.

With both Valbazen or SafeGuard, there is a 2 week egg withdrawal time. For chickens or ducks Valbazen dosage is 0.08 ml per pound of weight given once and again 10 days later. SafeGuard dosage is 0.23 ml per pound for 5 days.
 
Capillary/threadworms are one of the more dangerous worms in chickens. Aquasol, a weak solution of fenbendazole used in the water that does not require an egg withdrawal, does not treat capillary worms. The two wormers I recommend will treat capillary worms. They are Valbazen 1/2 ml given orally to each 4-6 pound chicken, and then repeated in 10 days. Or use SafeGuard Liquid Goat Wormer or Equine paste 10% fenbendazole. Dosage of either is 1/4 ml per pound of weight given orally to each chicken for 5 consecutive days.

With both Valbazen or SafeGuard, there is a 2 week egg withdrawal time. For chickens or ducks Valbazen dosage is 0.08 ml per pound of weight given once and again 10 days later. SafeGuard dosage is 0.23 ml per pound for 5 days.
This is helpful. With the Valbazen, you give them one dose and then again 10 days later, not every day for a certain period? That's appealing...I was hoping for water dosage as catching chickens and ducks and doing a drench every day is not easy. Do you happen to know if it's safe for molting birds?
 
Valbazen is given once and again after 10 days, and is safe for molting birds. I would wait to worm with SafeGuard/fenbendazole, but capillary worms are dangerous. Valbazen is more expensive, fewer stores have it, but TSC an order it, and the small bottle has 500 ml or 1000 doses for chickens. Here is a place to order it for a reasonable price.
https://www.valleyvet.com/ct_detail.html?pgguid=30e07949-7b6a-11d5-a192-00b0d0204ae5
 
Thanks - the good news is the report stated light load. I’ll talk to my vet and see what she recommends for the flocks as a precaution. I may go ahead and order that med just in case.
 
Hello - here's some background on my question:

I lost a chicken a couple of weeks ago. After a state lab necropsy, it appears to be cancer, but in the process they also included this note in the interim report:

“This hen was negative for Avian influenza and two species of Mycoplasma. A parasite screen was run on feces, which found a small amount of coccidia (likely not clinically significant) and Capillaria (threadworm)…These worms can be controlled with fenbendazole and other dewormers. One fenbendazole product is Aquasol, which is approved for laying hens. For this product a withdrawal period is not required before the eggs can be eaten if it is given according to directions. No other product is FDA approved for laying hens, and it is recommended to work with a veterinarian to determine proper dose and withdrawal period for other dewormers.”

Out of caution since it didn't seem to be the main cause but was present to some degree, I thought I should deworm the flock. I only have 8 chickens plus 6 runner ducks. (Note that I do have a vet, but she's answering questions out of the goodness of her heart (I'm not booking appointments in other words) and I don't want to infringe too much on her. She is going to assist with dosing and whatnot...ANYWAY) -

I have read various things about threadworm and while the state lab report said that was the product to use, other sites say it isn't effective. That's confusing and annoying thing number one.

Confusing and annoying thing number two, is I have read molting hens shouldn't have this medication - well it's fall and while most of my birds look fine I do have one obviously actively growing in new feathers. So hold off on the flock until that's done?

Confusing and annoying thing number three...I can easily dose the chickens in their water once the amount is calculated, as they pretty much have the one source. They do have access to a pond but they typically drink from their waterer. The ducks, however, have multiple sources - a pond, a couple of buckets, etc. So does anyone know if there is a way to determine how much medication could be given to each individual duck (say, from a dropper onto peas for each of them)?

I have learned so much about the health and wellbeing of my flocks but still always learning. Any advice or input would be welcome!
I don’t have any advice on ducks and medications but I have a recommendation on chicken health there is a book I highly recommend
 

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Hi I'm in Ireland and I have a sick hen who has stopped laying and crop is emptying slower than normal. It does still empty over night though. I assumed had a reproductive infection but after a couple of days treating with antibiotic and monitoring her she pooped in front of my on a concrete floor and it was brown/red coloured water and I definatly saw movement from tiny little sting looking things. After a bit of googling I think it might be thread worms. What fo you think? Also I started treating her for the worms using a dog wormer called parazole which in a 10% fenbenazole soloution. I weighed her with a very unreliable weighing scales that said she was 1.5kg I would have guessed her weight to be about 1.7kg but I'm dosing her assuming she is 1.5kg giving her .75ml for 3 days consecutively. She is in great form I'm the morning and crop empty and she is hungry but as the day goes on and after her crop is full she lethargic. Is this typical with threadworm? Not sure if something else is going on aswell. And not sure if I'm doing her correctly. Any input welcome
 

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Hi I'm in Ireland and I have a sick hen who has stopped laying and crop is emptying slower than normal. It does still empty over night though. I assumed had a reproductive infection but after a couple of days treating with antibiotic and monitoring her she pooped in front of my on a concrete floor and it was brown/red coloured water and I definatly saw movement from tiny little sting looking things. After a bit of googling I think it might be thread worms. What fo you think? Also I started treating her for the worms using a dog wormer called parazole which in a 10% fenbenazole soloution. I weighed her with a very unreliable weighing scales that said she was 1.5kg I would have guessed her weight to be about 1.7kg but I'm dosing her assuming she is 1.5kg giving her .75ml for 3 days consecutively. She is in great form I'm the morning and crop empty and she is hungry but as the day goes on and after her crop is full she lethargic. Is this typical with threadworm? Not sure if something else is going on aswell. And not sure if I'm doing her correctly. Any input welcome
You should copy all this and start your own thread-you will get more answers that way
 

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