Chickens With Swollen Eyes Shut – Answered

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Do Your Chickens Have Coryza, and What Should You Do?

In general, poultry is affected by different varying conditions. In most cases, chicken diseases can quickly spread and affect the whole flock. There have been countless instances where farmers have suffered insurmountable losses due to chicken diseases. Some of the common chicken diseases include fowl pox, coryza, rotgut, and aspergillosis.

First domesticated in East Asia about 8000 years ago, chickens have become one of the most common poultry worldwide. Today, you’ll find chickens in homes all over the world.

Chickens are easy to keep and maintain, mature fast, and provide both meat and eggs. However easy as they may be to keep, they are susceptible to multiple diseases and conditions. As such, you need to take extra care of your chicken to make sure you have a healthy and thriving flock.

People rearing poultry often ask, ‘what does it mean when a chicken has swollen eyes shut?’ The answer to this question could be a number of diseases as many infections interfere with chicken’s eyes. One of the common diseases to look for when your chickens have swollen eyes shut is coryza. Just what is coryza, how does it affect your birds, and what can you do if you notice your chicken suffering from this condition? Here’s everything you need to know about the coryza disease in chickens.

What is infectious coryza?

Coryza may take a week until you can notice the effects, which means it can easily spread to the rest of the flock within a matter of days and without your knowledge.

Infectious coryza, simply known as coryza, is the medical definition of an acute respiratory infection that affects chicken and a few other bird species. The disease is caused by bacteria known as Avibacterium paragallinarum. While the condition is often observed in backyard chicken, it can also attack pheasants and quail.

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What signs and symptoms should you look out for?

Some of the symptoms associated with the disease are common in other chicken illnesses. If you notice any of these or worry your birds may have the coryza, you should consult a veterinarian as soon as possible.

Some of the sins to look out for include;

The chickens have swollen eyes even when shut

Coughing and sneezing

Difficulty breathing

Swelling around the eyes, wattles, and face

Reduction in egg production

 Weight loss

 Loss of appetite


Pungent smell from the eyes and nose

Depending on the severity of the disease, your chicken could display a few or all of the abovementioned symptoms.

How is Infectious coryza transmitted?

Coryza is mostly transmitted from one chicken to the others. Once a member of the flock has contracted the disease, it takes anywhere from 3 to 10 days for the symptoms to show. Since the disease is highly infectious, the whole flock could have caught it by the time you’re noticing. In most cases, transmission occurs when new birds are introduced into an existing flock. A chicken can act as a carrier even after treatment and with little-to-no symptoms.

Other modes of transmission include water and food. If a sick chicken feeds or drinks water, the bacterial will be discharged into the water. When the other chicken feeds or drinks from the same source, they’ll likely catch the illness. This sheds light on the importance of keeping the coop clean and switching up the feeding and watering troughs regularly.

How can you treat Infectious coryza in chicken?

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As mentioned above, Infectious coryza is a highly contagious disease and could affect the whole flock within a relatively short period. As a result, it’s extremely important to treat the chicken suffering from the condition. If you’re uncertain about the state of your birds, you should get a vet to investigate and offer further guidance.

Because of the infection’s contagious nature, the first step when you suspect Infectious coryza disease is to isolate the bird. This could potentially save the other birds. Nonetheless, you’re advised to treat the other birds with antibiotics through the feeds and water. Even after treatment, the isolated chicken could still be a carrier and could infect the flock after it has been treated.

There are numerous medical and anecdotal remedies for Infectious coryza. However, before you administer any treatment, it’s important to consult a specialist as varying cases may require a different approach. Some of the commonly used coryza treatments are;

1. Colloidal silver

Long hailed for its efficacy and antibacterial qualities, colloidal silver is an excellent coryza remedy. You’ll have to syringe feed the affected chicken with about 30 PPM suspension of colloidal silver. This is a safe dosage, and should the bird regress, you can gradually increase the dosage. For the rest of the flock, you can put a few teaspoons of colloidal silver into the water as a preventative measure.

2. Tylan-50

Tylan is one of the most recommended antibiotics for treating Infectious coryza. Most vets will prescribe Tylan, although you can also get it over the counter in most regions. The powder form of this tried and tested remedy is water-soluble, although you can also get the oral suspension.

For the best results, administer � cc of Tylan-50 for at least five days. To prevent further spreading of coryza, you should also add the suspension to the chicken’s drinking water.

There are various home remedies that have worked for some farmers. These include;

3. Oregano

Rich in natural antibiotics, oregano can boost your chicken’s immunity and help them fight diseases such as Infectious coryza. Moreover, chickens generally like oregano, and planting it near the coup will allow them to feed frequently. In fact, there are cases where birds intentionally seek out oregano when feeling unwell.

4. Garlic

The uses of garlic extend to the animal kingdom as it can be used to keep pests away. Garlic also contains anti-inflammatory features and can be used to fend off cold symptoms in chickens. Adding a few cloves of fresh garlic cloves to your chicken feed can reduce pungent smells, increase egg production, and boost growth in your chickens.

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