Corid Dosage For Chicken, Is It Effective Against Coccidiosis?

Corid Dosage For Chicken

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Corid dosage for chicken? How much Corid should you give to the chickens? Is Corid safe for chickens? All these questions may be keeping you up at night, chicken keepers should know about it before the little chick begins to walk. 

Before we begin to tell you about Corid, it is important for the new chicken owners to know why it is given to the chickens in the first place. Let’s know about the disease first then the cure.

What is Coccidiosis?

Coccidiosis is a common chicken disease known as Cocci. It is a serious problem that should be treated as such. It can be controlled and treated easily with good flock management practices.

This common intestinal disease is caused by multiple species of parasites, which multiply rapidly, damaging intestinal lining, affecting the nutrients absorbing ability of chickens. The microscopic cocci parasites adhere to the gut lining, preventing nutrients absorption.

According to a recent study, It can be fatal if not treated properly and timely, chicks are more vulnerable to this disease than older chickens, they develop resistance against the disease.


There are some common symptoms that let you diagnose if the chicken is suffering from this disease or not. Common symptoms include loss of appetite, dehydration, diarrhea, droopiness, blood or mucus in the feces, pale combs, and wattles.

What is Corid?

Corid is a drug called Amprolium that is approved by the Food and Drug Administration. It is used widely to treat poultry in backyard settings. Even if a single chicken shows symptoms or has been diagnosed with this disease, the entire flock should be treated with Corid.

Corid Dosage For Chickens

There are a lot of medications and drugs available to treat coccidiosis, Corid being the most commonly used. Corid dosages are given to the chicken for the prevention of this disease and effective treatment. Following two corid dosages are used in the treatment of cocci.

Merial Corid 20% Soluble Powder

Merial Corid Powder is available on Amazon with hundreds of positive reviews which explains its popularity among poultry and livestock farmers. This 20% Corid Soluble Powder is used for beef & dairy cattle (not recommended for goats).

The active ingredient in this composition is Amprolium, being approved by FDA makes it safer for chickens. It can help prevent and cure Coccidiosis if you follow these treatment protocols.

5-Day Treatment 

One way of treating chickens diagnosed with Coccidiosis is by giving them a corid dosage for five consecutive days. It should not be given as it is, rather first mixed in water and given to the chicken in a certain amount. The recommended daily dosage is 10 mg per kg ( weight of the chicken).

21-Day Prevention Plan

The above plan was for treating Cocci, now, this 21-day prevention control will prevent this disease to further trouble naive chickens in the future. Follow this protocol for 21 days by giving 5 mg amprolium/kg to the chickens. This 21-day recommended daily dosage is for preventing Coccidiosis.

Merial Corid 9.6% Oral Solution

This is a liquid solution containing 9.6% Amprolium to treat as well as prevent Coccidiosis. It can be given mixed with the drinking water or as a drench treatment.

Treatment Protocol

Make a solution by adding 16 oz of Corid in 100 gallons of water. If you opt for a drench treatment, add 3 oz of Corid per 1 pt of water. The recommended dosage given to the chicken is 1 oz per 100 lbs of weight. This Corid dosage is given using a syringe.

Prevention Protocol

Make a solution by adding 8 oz of Corid to 100 gallons of water. Add 1.5 oz of Corid in 1 pt of water for drench treatment. For prevention, give a syringe dosage of 1 oz per 100 lbs of body weight.

How Do Corid Functions?

Corid mimics the functions of Vitamin B1 and Thiamin. Cocci parasites need this vitamin to survive, grow, and reproduce. Once the Corid dosage is given regularly, these parasites start to suffer vitamin deficiency as Corid is imitating the mechanism of Vitamin B1. As a result of a reduction in vitamin levels, Cocci parasites die of starvation.

Regular Treatment for 5 days ensures that the chicken is cured of Coccidiosis. Vitamin A and Vitamin K supplements should be given to the chickens along with the Corid treatment.

Is Corid Safe For Chickens?

Being approved by the FDA gives Corid the safety stamp that it requires. It is safer for chickens to treat with Coccidiosis. Amprolium is a common drug sold under the brand name Corid. It is available in both soluble power and liquid solution. Corid is mixed with water and used for approximately 5 days for successful treatment.

How Long Does Corid Take To Work?

In most cases, Corid dosage starts to show results in 2-3 days. Sometimes, it takes a little longer than 3 days. Continue with the Corid Dosage, if the results are not visible in a few days, extend the treatment up to 5-7 days. If you still see no improvement, maybe the chicken is suffering from another disease, try consulting a vet.

Is Corid An Anti-biotic?

Amprolium is a drug and should not be mistaken for an antibiotic. However, it does help in the creation of antibodies by leaving some Coccidia in the system. This way, it can stimulate the creation of antibodies to develop resistance against the disease.

Natural Ways To Treat Coccidiosis

If the condition is not severe or has not gotten out of control, there are some wondrous ways you can cure the infected chicken. No need to buy fancy medication, herbs, or food items for treatment, just the regularly used items in the kitchen would work. Here are few ways that help to treat Coccidiosis

  • Dilute organic apple cider vinegar with water and mix it well, give it a few times to the chickens. If there is an improvement, you have saved yourself some extra bucks.
  • Add a little garlic with yogurt, this home remedy will help increase the number of good bacterias in the digestive tract.
  • The moisture in the environment is to be blamed for the infection and Coccidia parasites, keeping the area dry and clean will prevent Coccidiosis and other diseases. Both treatments are research proof.

Frequently Asked Questions

How long can a chicken live with Coccidiosis?

Coccidiosis is a common disease that prohibits nutrients absorption from food. The prepatent period being 4-7 days, Sporulated oocysts can survive for long periods depending on the environmental conditions. 

What is Corid used for?

A Corid solution containing Amprolium is used to treat and prevent coccidiosis caused by Eimeria bovis and E. zurnii in calves, cattle, chickens, and others. It is the strongest solution for preventing such fatal diseases.

What is Amprolium For Poultry?

This pharmaceutical ingredient is approved by authorities for the treatment and prevention in laying chickens. Being a Thiamin antagonist and bearing close structural similarity to it, it aids in blocking thiamin receptors.
In brief, even though Corid dosage is known to work and religiously followed by many chicken keepers, it is better to ask a vet or a professional first should you be giving Corid to the chickens? Often people read the symptoms wrong, chickens might have some other disease while they are treating for Coccidiosis

Note: These all recommendations are just information about medicine, not written by the vet so always consult a veterinary doctor before using any medicine.


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