
If your chicken is weak and breathing hard, it could be suffering from a respiratory illness. Some common respiratory illnesses in chickens include Avian Influenza, Infectious Bronchitis, Marek's Disease, Gapeworm, and Chronic Respiratory Disease (CRD). These illnesses can present with a range of symptoms such as sneezing, coughing, wheezing, difficulty breathing, lethargy, and reduced egg-laying. It is important to seek veterinary advice if you suspect your chicken is unwell, as some respiratory illnesses can be serious and even fatal. While waiting for veterinary advice, you can try to keep your chicken warm, hydrated, and provide it with soft foods and electrolytes in its water.
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What You'll Learn
- Possible causes: disease, poisoning, respiratory illness, cancer, or reproductive disorder
- Signs and symptoms: lethargy, loss of appetite, difficulty walking, swollen crop, sour breath
- Diagnosis: listen to the chest, check for rales, gasping, nasal discharge, and other respiratory issues
- Treatment: hydration, nutrition, warmth, electrolytes, vitamins, antibiotics, and probiotics
- Prevention: vaccination, good sanitation, and biosecurity measures

Possible causes: disease, poisoning, respiratory illness, cancer, or reproductive disorder
If your chicken is weak and breathing hard, it could be suffering from a disease, poisoning, respiratory illness, cancer, or reproductive disorder.
Disease
Diseases in chickens can be caused by viruses, bacteria, or parasites, and can be passed from bird to bird, or from infected wild birds, mosquitos, or airborne particles from a nearby infected flock. Some diseases, like bird flu, can be transmitted to humans and must be treated as a national emergency. Symptoms of disease in chickens include swollen joints, coughing and sneezing, breathing problems, reduced egg-laying, white spots on the skin, scabs and sores on combs, and greenish or yellowish diarrhea. Some diseases, like infectious bronchitis, can be treated with antibiotics and vaccines. However, other diseases, like wet pox, may require the infected bird to be put down to prevent the spread of infection.
Poisoning
Poisoning in chickens can occur when they consume contaminated food, such as rotten meat, or come into contact with contaminated surfaces or equipment. Salmonella is a common cause of foodborne illness in chickens, and proper handling and cooking of raw chicken are essential to prevent poisoning. Symptoms of poisoning may include tremors, difficulty breathing, and eventually, total body paralysis if left untreated.
Respiratory Illness
Respiratory illnesses in chickens can be caused by viruses or bacteria and are usually highly contagious. Some common respiratory diseases in chickens include infectious bronchitis, laryngotracheitis, and wet pox. Symptoms of respiratory illness include open-beak breathing, sneezing, coughing, wheezing, runny nose, sticky eyes, and gurgling or rattling sounds in the throat. While some respiratory illnesses can be treated with antibiotics and vaccines, others may require isolation or destruction of the infected bird to prevent the spread of infection.
Cancer
Cancer in chickens, specifically female chickens, can manifest as carcinomatosis or neoplasia, which is commonly associated with the lymphoid leukosis (LL) virus. Clinical signs of cancer include lethargy, weakness, decreased appetite, decreased or cessation of egg-laying, and an enlarged coelomic cavity. Radiographic imaging and ultrasonography can be used to confirm the presence of tissue masses. While there is no cure for cancer in chickens, supportive care and symptom management may be provided by a veterinarian.
Reproductive Disorder
Reproductive disorders in chickens can occur due to various causes, including egg-related coelomitis (previously known as egg yolk peritonitis), persistent right oviduct, neoplasia, and old age. These disorders can lead to decreased egg production, enlarged coelomic cavities, and other reproductive issues. Treatment options may include veterinary care, medication, or, in severe cases, culling to prevent the spread of infection.
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Signs and symptoms: lethargy, loss of appetite, difficulty walking, swollen crop, sour breath
If your chicken is weak and breathing hard, it could be suffering from a number of ailments. It is always best to consult a vet for an expert opinion on the problem and its treatment. However, here are some possible causes and their signs and symptoms:
Infection in the foot
This can be caused by an accidental cut, leading to an infection in the foot and sometimes the leg. Symptoms include lethargy, droopiness, and listlessness, accompanied by a loss of appetite, pale combs and wattles, and ruffled feathers. In this case, the foot and leg may begin to swell.
Staphylococcal infections
These infections appear in three forms: septicemia (acute), arthritic (chronic), and bumblefoot. Septicemia causes birds to become listless, lose their appetite, and show feverish behaviour and pain during movement. Arthritic staphylococcal infections cause lameness, breast blisters, and painful movement. Bumblefoot is a localized chronic staph infection of the foot, causing swollen joints.
Marek's disease
This is a type of avian cancer caused by tumors in nerves, which can cause lameness and paralysis. Tumors can also occur in the eyes, causing irregularly shaped pupils and blindness. Tumors in other organs such as the liver, kidney, and lungs can cause incoordination, paleness, weak labored breathing, and enlarged feather follicles. In the terminal stages, birds become emaciated with pale, scaly combs and greenish diarrhea. Marek's disease is transmitted by air within the poultry house and can be carried by infected birds for life.
Fowl cholera
This usually affects birds older than 6 weeks of age. Symptoms include fever, reduced feed consumption, mucoid discharge from the mouth, ruffled feathers, diarrhea, and labored breathing. As the disease progresses, birds lose weight, develop joint infections, and experience rattling noises from exudate in air passages. In chronic cases, chickens develop abscessed wattles and swollen joints.
Infectious bronchitis
This is a very contagious poultry disease spread by air, feed bags, infected houses, and rodents. It infects many tissues of the body, including the reproductive tract. Symptoms include labored breathing, watery discharge from the eyes and nostrils, and a dramatic drop in egg production.
Poisoning
If your chicken has eaten something poisonous, it may exhibit lethargy, difficulty walking, and breathing problems. In this case, you can treat the chicken with activated charcoal, purchased at any pharmacy.
Internal laying/reproductive disorder
Your chicken may be suffering from an internal laying/reproductive disorder such as Egg Yolk Peritonitis, Ascites, cancer, or tumors. Symptoms include lethargy, loss of appetite and difficulty walking, sometimes with bloat/fluid in the abdomen, and weight loss in the breast.
Please note that this list is not exhaustive, and it is important to consult a veterinarian for an accurate diagnosis and treatment plan.
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Diagnosis: listen to the chest, check for rales, gasping, nasal discharge, and other respiratory issues
When diagnosing respiratory issues in chickens, listen closely to their chest. If you hear a rattling, congested, or phlegmy sound, this could indicate a respiratory illness. In addition to listening to the chest, look for the following signs and symptoms:
Rales
Rales, also known as crackles, refer to the sound of poor breathing caused by fluids in the chicken's respiratory system. The crackling sound occurs as little air bubbles pop when the chicken breathes. Rales are usually quite noticeable and are a common sign of respiratory infections in chickens. They are often accompanied by gasping, though not always. Gasping is a severe symptom and typically indicates an advanced respiratory infection or a mechanical airway obstruction. Chickens stretch their necks and crane their heads upward to open their trachea and breathe better, which is sometimes called "pump handle breathing" due to the dramatic motion.
Nasal Discharge
Clear bubbling fluid near the corners of the eyes or fluid oozing from the nostrils can indicate a respiratory infection. Foul-smelling discharge from the nostrils is a sign of infectious coryza, a common bacterial disease in chickens.
Facial Swelling
Swelling of the face, around the eyes, and sometimes the wattles (vascular areas full of blood vessels) can indicate respiratory infection. Cyanosis, a bluish or purple discolouration of the skin, indicates a lack of oxygen in the tissues.
Head Shaking
Head shaking is an attempt to clear the airway of mucus or fluid. It can result in blood spatter on the walls of the coop and is a symptom of infectious laryngotracheitis.
While some respiratory issues may resolve on their own, it is important to seek veterinary advice for an accurate diagnosis and appropriate treatment.
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Treatment: hydration, nutrition, warmth, electrolytes, vitamins, antibiotics, and probiotics
If your chicken is weak and breathing hard, you should first separate it from the flock and place it in a quiet, protected, and warm environment. This will allow you to observe it closely and prevent the spread of any contagious conditions. Make sure to provide your sick chicken with plenty of clean drinking water to keep it hydrated. Water is essential for regulating body temperature, digestion, and eliminating body wastes. You can also add a vitamin/electrolyte supplement to the water for a day or two to help with rehydration. Electrolytes can be purchased or made at home using sugar, salt, baking soda, and potassium chloride. They are crucial for proper body function and can be the difference between life and death for your chicken.
Once your chicken is stable, the next step is to focus on nutrition. Start by experimenting with different foods to see what your chicken likes. You can offer hard-boiled eggs, mealworms, fresh or thawed corn, yogurt, human-grade cooked meats, grapes, cantaloupe, cherries, apples, and fresh greens such as grass, clover, lettuce, spinach, and kale. Avoid salty foods and avocado, as they can be harmful to chickens.
In addition to hydration and nutrition, you may want to consider providing your chicken with supplements such as vitamins and probiotics. Vitamins are essential for proper growth, nutrition, reproduction, and immunity in chickens. They can be provided through a vitamin water supplement or a well-balanced feed formulated specifically for layers. Probiotics are live microorganisms that support digestive health by populating the digestive tract with beneficial bacteria. They can be offered to birds of all ages and are typically given in powder form mixed with water.
Finally, depending on the cause of your chicken's illness, antibiotics may be necessary. However, it is important to consult a veterinarian before administering any antibiotics, as they should only be used to treat bacterial infections. A trained poultry veterinarian can help diagnose the issue and determine the appropriate treatment plan.
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Prevention: vaccination, good sanitation, and biosecurity measures
If your chicken is weak and breathing hard, it could be a sign of illness. Many chicken ailments are treatable, but some are fatal. It is always best to consult a vet for an expert opinion on the problem and its treatment.
Vaccination
Vaccination is key to preventing certain chicken ailments. Marek's disease, for instance, is present in almost every flock, and vaccination of all chickens is strongly recommended. Vaccination is inexpensive and can be administered by purchasing vaccinated chicks from hatcheries or by vaccinating your own chicks on-site. Vaccination against the Newcastle disease virus may also be recommended for chickens in certain geographical areas or those frequently taken to shows and exhibitions.
Good Sanitation
Good sanitation is essential to poultry health. This includes providing a proper balanced diet, fresh clean water, and sound management practices. Isolation is a basic principle for preventing disease spread, and it is important to keep equipment, especially waterers, clean and sanitary. Remove manure from pens promptly and manage rodents by eliminating their habitat and access to feed and water sources.
Biosecurity Measures
Biosecurity measures are critical to preventing disease outbreaks. This includes structural biosecurity, such as the physical construction and maintenance of coops, and operational biosecurity, or the practices and procedures followed by those raising poultry. Keep visitors to a minimum, and ensure everyone who comes into contact with your flock follows biosecurity principles, including handwashing before and after.
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Frequently asked questions
If your chicken is weak and breathing hard, it may be suffering from a respiratory illness. You should listen to its chest and look out for a rattling, congested (phlegmy) sound. If your chicken is struggling to breathe, it may be suffering from gapeworm. Most chicken respiratory diseases require medical treatment, so you should seek the professional opinion of a veterinarian, preferably an avian or poultry vet. In the meantime, keep your chicken warm and give it electrolytes and vitamins.
Symptoms of respiratory illness in chickens include:
- Sneezing
- Coughing
- Wheezing
- Runny nose
- Sticky eyes
- Difficulty breathing
- Reduced egg-laying
- Swelling around the face
- Foul-smelling discharge from the nostrils and eyes
- Diarrhea
Chicken respiratory illnesses can be caused by viruses, bacteria, fungi, or parasites. They are often caused by stress or environmental triggers. Infectious bronchitis, caused by a type of coronavirus, is the most contagious disease of chickens.
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