Chicken Wormers: How to Deworm Chickens?

Like most of the animals, chicken’s also get worm infestations. So, they also need Chicken wormers.

Chicken deworming is one of the most important things to do in poultry farming. So every chicken farmer should know about chicken wormers and the method to deworm flocks.

Worm infection can make your chickens sick, which may lead to death of flocks if not diagnosed and treated in time. 

Here in this guide, we have explained symptoms, causes, prevention, treatment and a list of some best chicken wormers.

What are Chicken Wormers?

Chicken wormers also known as chicken deworming medicines. These veterinary supplements are used to treat various types of worm infestation in animals.

Few chicken wormer also helps in lice treatment. So, overall these are pet supplement to kill worms inside and outside body.

Most common medicines are fenbendazole, ivermectin, pyrantel pamoate, piperazine, etc.

Last update on 2021-06-30 / Affiliate links / Images from Amazon Product Advertising API

Helminthiasis: Worm Infestation in Chickens

Here we are talking about worm infestation, not about worms that move on the soil. Any type of presence of worms in the body of chickens is called Helminthiasis in Poultry or Worm Infestation

Worms may live inside the intestine, heart, head, skin, and other organs of any animal.

Chronic worm infestation in chicken intestine
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Chronic worm infestation in chicken intestine

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Like other mammals and birds, chicken is also affected by the parasitic worm infestation. Worms inside the intestine eat all nutritious substances of food and body which cause various health problems in your chicken flocks.

Sometime late diagnosis of helminthiasis may lead to death of flocks.

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If you see symptoms of worm infestation in your chicken, take your chicken’s poop to a veterinarian for tests. They will do a slide test to see worms in the poop.

Symptoms of Worm Infestation in Chickens: Understand When You Need a Chicken Wormer

If your chicken is not fully active, check their body and poop properly.

It is very hard to see symptoms of helminthiasis in chickens, but if your backyard chicken is not eating properly or eating more, then it’s the first sign and symptom to see.

Tapeworms in Chicken Droppings
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Tapeworms in Chicken Droppings

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Check your chickens may have diarrhea. 

Some chicken puffed up and tucked to get warm if they are going through some serious health problem.

Some hens stop laying eggs if they were affected with worm infection. So, you may put this in the symptom list of worm infection.

A chicken gasping for air due to worm infection
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A chicken gasping for air

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In a few chickens you may see symptoms like stretching and gasping for air, which may be because of gapeworm infestation.

When your chickens have a chronic worm infection, you may see worms in their poop.

Types of Parasitic Worms that Cause Helminthiasis in Chickens

There are mainly 4 types of worms that cause worm infestation in chickens-

1. Roundworm in chickens (Ascaridia galli)

Roundworms are the common worms that affect chicken’s health. They are about 6-7 cm in size. It mainly causes loss in weight, reduces egg production, intestinal blockage, and more intestine blockage. It also causes growth retardation and mortality.

2. Tapeworms in chickens (Davainea proglottina, Raillietina echinobothrida, R. tetragona, and R. cesticillus)

Tapeworms mainly take all nutrients from intestine food and reduce nutrients absorption by the intestine. They are flat ribbon-like shape worms. 

3. Gapeworms in chickens (Syngamus trachea)

These Gapeworms attach themselves to the trachea of the chicken. So, it causes gasping for air and will stretch their neck because these worms mainly affect the windpipe of chickens. Sometimes you may see eggs of these worms coughing by chickens.

4. Capillary Worms in Chickens (C. contorta, C. annulata, C. bursata, C. caudinflata, and C. obsignata)

Capillary worms are thread-like structures, and they are microscopic. You can see them from naked eyes.

People know this as threadworms, hairworms and the infection is Capillariasis. It mainly shows signs like unthriftiness, growth retardation, weight loss, emaciation, reduced egg production, and death.

Causes of Worms Infestation in Chickens

There are so many ways a chicken can get infested with worms. Worms are everywhere in soil. There is no specific place for worms.

Chicken gets worms for so many sources. Sometimes they eat whole snails, slugs, grasshoppers which already contain worms in their body which go directly inside the chicken’s intestine.

Most of the animals and birds eat seeds and feed from the ground. All worms live in the soil so the worm goes inside the intestine with chicken feed or treats which we love to give them.

Also Read:  What is a Pullet Chicken? Definition, Eggs, Characteristics

Sometimes chicken eats droppings and poop of animals and humans. It is a major cause of worm infestation in chicken.

Another most important reason is wet litter in poultry sheds. Litter is the collection of chicken droppings in which flies sit and transmit worms from one place to another. Wet litter makes this transmission possible. 

Sometimes worms also get inside chickens intestines through the cloaca when they sit on worms on a litter of sheds.

Worm infestation is a normal thing in the life of all animals and birds. It also occurs in humans. Most of the people take albendazole and ivermectin every few months for deworming. It’s not an enormous thing to worry about if we take proper precautions and treatment in time.

So, now we will tell you some precautions to avoid chicken worms.

Preventions for Worm infestations in Chickens

It’s very hard to say what to do to prevent worm infection in free-range chickens because they peak everywhere and eat lots of unwanted things every day.

But, If you follow the points which we have given below will reduce the chances of worms in chicken. So, take these steps to keep away chicken worms for your chicken flocks –

  • Keep your chicken coop clean and the litter of the shed dry. This stops the growth of worms in soil and litter.
  • Replace new litter in sheds to stop the life-cycle of parasites.
  • Change the bedding of the poultry sheds regularly.
  • Provide clean water and feed to your chickens.
  • Use a feeder and drinker and avoid throwing food in front of them. It avoids peaking them on soil, which initially stops.
  • Don’t overcrowd chicken flocks in sheds and coops.
  • Try to keep your chickens away from insects.
  • Give a preventive dose of chicken deworming medicines. 

So, now it’s time to understand If you see worm infection in your chickens.

How to Deworm Chickens?

We already mentioned various worm infection symptoms above in this post. If you are confirmed that your chicken has a worm infection after proper diagnosis from the vet, then they may prescribe you some good chicken dewormers.

Most of the dosage of the chicken wormers is present on the product packaging. So, you don’t have to worry about the dose.

Chicken wormers are given in water. They are mixed in water and given in chicken waterers. Below we have given a list of few best chicken wormers.

Top 6 Best Chicken Wormers for Helminthiasis

Here is the list of few best chicken wormers (poultry dewormers) –

1. Durvet Ivermectin Pour On

(It is the Best Chicken wormer for roundworms, lungworms, grubs, horn flies, lice, and sarcoptic mange mites)

Durvet Ivermectin Pour On 1 Lt
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213 Reviews
Durvet Ivermectin Pour On 1 Lt
  • Ivermectin Pour On. Animal Health Supplies
  • Manufacturer: DURVET INC D
  • Manufacturer part number: 01-11042FP

Last update on 2021-06-17 / Affiliate links / Images from Amazon Product Advertising API

  • It’s the best pour on parasiticide or chicken wormer.
  • Just pour the recommended dose of the liquid in the chicken mouth directly.
  • It contains 5mg Ivermectin in every 1 ml.
  • The best treatment for roundworms, lungworms, grubs, horn flies, lice, and sarcoptic mange mites.
  • Egg withdrawal period of 7 days would be recommended but a farmer can exceed it to 10 days for selling or consuming eggs and for consuming meat it must be over 28-30.
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2. Verm-X Liquid Poultry & Fowl Internal Parasite

(Best Natural Dewormer and Good Intestinal health)

Verm-x Liquid Poultry & Fowl Internal Parasite 250ml
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912 Reviews
Verm-x Liquid Poultry & Fowl Internal Parasite 250ml
  • Delivery available to UK and International addresses.
  • This Verm-X product is dispatched from the UK.
  • Sold by Get Pet Supplies, only the best for your pet.

Last update on 2021-06-30 / Affiliate links / Images from Amazon Product Advertising API

  • Best intestinal hygiene liquid which kills and avoid worm infestation in chickens.
  • It is safe to use because of its natural composition.
  • It contains ingredients Allium Sativum (Garlic), Ulmus Fulva (Slippery Elm), Mentha Piperita (Peppermint), Thymus Vulgaris (Common Thyme), Gallium Aperine (Cleavers), Cinnamomum Zelandicum (Cinnamon), Picrasma Excelsa (Quassia), Tanacetum Vulgare (Tansy), Foeniculum Vulgare (Fennel), Urtica Dioica (Nettle), Capsicum Minimum (Cayenne.)
  • Just pour the recommended dose of liquid in poultry drinking water.

3. Safeguard Merck Safe1.1LB Mult Dewormer

Merck Safe1.1LB Mult Dewormer
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314 Reviews
Merck Safe1.1LB Mult Dewormer
  • For use in beef and dairy cattle, equine, swine,...
  • No milk withdrawal
  • Did you know internal parasites can cost a producer...
  • Add Safe-Guard, add pounds: goes straight to the gut to...

Last update on 2021-06-30 / Affiliate links / Images from Amazon Product Advertising API

It contain 2.27 gms fenbendazole per lb. The dosage indication is written in package.

4. Pyrantel Pamoate Suspension 50 Mg 16 Oz Bottle

Best chicken wormer suspension for roundworm and tapeworm treatment.

Pyrantel Pamoate Suspension 50 Mg 16 Oz Bottle by Generic
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2,924 Reviews
Pyrantel Pamoate Suspension 50 Mg 16 Oz Bottle by Generic
  • Treats infections caused by pinworms
  • Dewormer
  • Convenient 16 oz bottle

Last update on 2021-06-30 / Affiliate links / Images from Amazon Product Advertising API

  • This chicken deworming medicine is available in suspension form.
  • It helps in treatment of pinworms, roundworms and tapeworms.
  • Its easy to use.
  • This contains Pyrantel Pamoate Suspension 50 Mg 16 Oz.
  • 4 day withdrawal period for eggs.

5. Merial 150197 Corid 9.6% Oral Solution for Calves Yellow, 16 oz

No products found.

It works great for round worm.

6. Vetrx Poultry Aid, 2 fl.oz

Vetrx Poultry Aid, 2 fl.oz
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2,295 Reviews
Vetrx Poultry Aid, 2 fl.oz
  • 100 natural
  • Effective relief and prevention from respiratory...
  • Fights against colds roup scaly legs amp eye worm
  • For all standard and rare poultry chickens turkeys...
  • 2 fl oz

Last update on 2021-06-30 / Affiliate links / Images from Amazon Product Advertising API

Best for external worm infestation like lice, mites and other respiratory issue.


In this article, we have provided you complete information on Chicken dewormers.

If you only see symptoms like your chicken showing a lack of appetite, you can give natural chicken wormer i.e. Verm-x Liquid.

But If you see worms in chicken poop. Take the droppings to the vet and confirm the type of worm first. Then try Pyrantel Pamoate Suspension or Ivermectin.

So, If you have any more questions on chicken wormers just comment below. I hope you liked this informative post.

Chicken Wormers: How to Deworm Chickens Naturally?
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