Fenbendazole Treatment, PLEASE HELP

[HowellChicken123]

We have had a few birds die from Cappillaria and received 100mg/mL of Fenbendazole to treat. The doctor told us to mix it into their water based on weight but our birds have a vast difference in weight. Do we administer orally? What dosage per pound should we use for this concentration? Very hard to find confident instructions online.

 

[Stravager]

Unless it's a water soluble form it's best to dose orally.
At 100mg/mL you should be dosing roughly about 0.23ml per lb of bodyweight. From what I understand most folks round up to 0.25ml/lb to make it easier to calculate. You can either put the bird in a bag and weigh off a luggage scale or use a kitchen/bathroom scale to weigh each individual.
Here's a thread that has good instructions:
https://www.backyardchickens.com/threads/can-i-use-ivermectin-and-safeguard.1591795/post-27382019
@Eggcessive, @Wyorp Rock, @casportpony are all good folks to ask if you have futher questions.

 

[Eggcessive]

With capillaries or threadworms, those can be especially harmful and dangerous. It usually requires oral dosage of the 10% SafeGuard 100mg per ml, 0.23 ml per pound given for 5 consecutive days. I would check them again in time to make sure that they are not getting them again later.

 

[HowellChicken123]

Unless it's a water soluble form it's best to dose orally.
At 100mg/mL you should be dosing roughly about 0.23ml per lb of bodyweight. From what I understand most folks round up to 0.25ml/lb to make it easier to calculate. You can either put the bird in a bag and weigh off a luggage scale or use a kitchen/bathroom scale to weigh each individual.
Here's a thread that has good instructions:
https://www.backyardchickens.com/threads/can-i-use-ivermectin-and-safeguard.1591795/post-27382019
@Eggcessive, @Wyorp Rock, @casportpony are all good folks to ask if you have futher questions.

Thank you so much!

 

[Kpegg]

With capillaries or threadworms, those can be especially harmful and dangerous. It usually requires oral dosage of the 10% SafeGuard 100mg per ml, 0.23 ml per pound given for 5 consecutive days. I would check them again in time to make sure that they are not getting them again later.

My chickens were just diagnosed with threadworms. When I worm I usually use the safegaurd equine paste, pea sized amount, repeat in 10 days. This is also what my vet recommended for the threadworms. Should I be giving the paste 5 days consecutively or is the above recommendation for the goat dewormer? If yes, give for 5 days, do you still repeat in 10 days?

 

[Wyorp Rock]

My chickens were just diagnosed with threadworms. When I worm I usually use the safegaurd equine paste, pea sized amount, repeat in 10 days. This is also what my vet recommended for the threadworms. Should I be giving the paste 5 days consecutively or is the above recommendation for the goat dewormer? If yes, give for 5 days, do you still repeat in 10 days?

Welcome To BYC
@Kpegg

Fenbendazole is dosed by weight.

For threadworms, I'd dose at 0.23ml per pound of weight given orally once daily for 5 days in a row. NO Repeat.

You can use the Equine Paste if you prefer, just draw the correct dose up into a needless syringe and dose each bird.
The Paste and the Liquid Goat dewormer are both 10%, just forms (one liquid, one paste) so either one will work.

Here's how to give oral medications. https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/

And if you want a rabbit hole read about "Pea Size Dosing", then this thread is for you:
https://www.backyardchickens.com/th...-sized-blob-of-horse-paste-de-wormer.1141545/

 

[Kpegg]

Welcome To BYC
@Kpegg

Fenbendazole is dosed by weight.

For threadworms, I'd dose at 0.23ml per pound of weight given orally once daily for 5 days in a row. NO Repeat.

You can use the Equine Paste if you prefer, just draw the correct dose up into a needless syringe and dose each bird.
The Paste and the Liquid Goat dewormer are both 10%, just forms (one liquid, one paste) so either one will work.

Here's how to give oral medications. https://www.backyardchickens.com/ar...dications-to-all-poultry-and-waterfowl.73335/

And if you want a rabbit hole read about "Pea Size Dosing", then this thread is for you:
https://www.backyardchickens.com/th...-sized-blob-of-horse-paste-de-wormer.1141545/

Thank you for the information. Is there a reason why not to repeat in 10 - 14 days? Everywhere else I look says you would need to repeat. Will 5 consecutive days (which I've been doing) eradicate any eggs/worms that could remain in the feces? Would it hurt to repeat? I don't want to harm the birds but also want to be sure the issue is taken care of.

 

[dawg53]

Thank you for the information. Is there a reason why not to repeat in 10 - 14 days? Everywhere else I look says you would need to repeat. Will 5 consecutive days (which I've been doing) eradicate any eggs/worms that could remain in the feces? Would it hurt to repeat? I don't want to harm the birds but also want to be sure the issue is taken care of.

Capillary worms are deadly. Knowing birds are infected with capillary worms, you want to hit them hard and fast within 5 days. It's good to assume worm eggs were excreted in the soil. Then reworm birds in 30 days (incubation time is about 28 days for Capillary worm eggs.)
I worm my birds monthly, then repeat in 10-14 days. Then again 30 days from the last dosing. It's the only way to break the worms lifecycle.

 

[Kpegg]

Capillary worms are deadly. Knowing birds are infected with capillary worms, you want to hit them hard and fast within 5 days. It's good to assume worm eggs were excreted in the soil. Then reworm birds in 30 days (incubation time is about 28 days for Capillary worm eggs.)
I worm my birds monthly, then repeat in 10-14 days. Then again 30 days from the last dosing. It's the only way to break the worms lifecycle.

@dawg53 Sorry, just want to make sure I'm following. My vet told me dose once and then repeat in 10-14 days so I'm trying to nail this down since apparently maybe thats not correct. I do generally deworm every spring and fall.

I also believe at least one chicken has had them for quite some time. She had rattling when her crop was full for several months but always acted fine and all other flockmates are completely fine. Wasn't until she started having a pasty bottom recently that I called the vet over and decided to get a fecal ran, still no symptoms from the rest of the group. I was never told the load of worms but I'll just assume it's significant at this point.

Anyway, I'm on day 4 of the 5 day treatment recommended here. The initial response to my post said no repeat but you're saying after the 5 day treatment to repeat in 30 days? Do I repeat the full 5 day treatment again or do only a one day dose? You say you worm your chickens every month? For life? What about egg withdrawl? My understanding is you need to toss them. I'm using fenbendazole paste. Am I basically doomed when it comes to eggs for the next several months?

 

[Wyorp Rock]

you want to hit them hard and fast within 5 days. It's good to assume worm eggs were excreted in the soil. Then reworm birds in 30 days (incubation time is about 28 days for Capillary worm eggs.)

Anyway, I'm on day 4 of the 5 day treatment recommended here. The initial response to my post said no repeat but you're saying after the 5 day treatment to repeat in 30 days? Do I repeat the full 5 day treatment again or do only a one day dose?

Give for 5 days in a row.

Repeat treatment again in 30 days to kill any that have hatched.

Depending on where you live and your worm load, some find that it's necessary to deworm more frequently than others.