Ammonia Toxicity in Geese
- See your vet immediately if your goose is open-mouth breathing, has swollen or shut eyes, is stumbling, or is too weak to reach food or water.
- Ammonia toxicity usually happens when droppings and wet bedding break down in poorly ventilated housing, especially in cold weather when airflow is reduced.
- Ammonia levels around 25-30 ppm can injure the upper airway, and higher levels around 50-75 ppm can burn the eyes and cornea in poultry.
- Early removal from the source, fresh air, eye care, and supportive treatment can help, but severe eye or lung injury may leave lasting damage.
- Typical 2025-2026 US vet cost range for one goose is about $90-$700 depending on whether care is limited to an exam and supportive treatment or requires hospitalization.
What Is Ammonia Toxicity in Geese?
Ammonia toxicity in geese is irritation or chemical injury caused by breathing high levels of ammonia gas or by having ammonia-rich moisture contact the eyes. In geese and other poultry, this most often comes from wet, dirty litter or bedding where droppings are breaking down. The gas is especially hard on the delicate lining of the nose, windpipe, and eyes.
This is not usually a problem with the goose's body making too much ammonia internally. Instead, it is an environmental air-quality problem. When ammonia builds up, geese may develop watery eyes, conjunctivitis, coughing or noisy breathing, reduced appetite, and reluctance to move around. If exposure is heavy or prolonged, the cornea can ulcerate and vision may be affected.
Geese can hide illness until they are quite stressed. A bird that cannot see well, breathe comfortably, or find feed and water can decline quickly. That is why ammonia toxicity should be treated as an urgent husbandry and medical issue, not only a nuisance odor problem.
Because ammonia also damages normal airway defenses, affected geese may be more likely to develop secondary respiratory infections afterward. Your vet can help separate primary ammonia injury from infections that may look similar.
Symptoms of Ammonia Toxicity in Geese
- Strong ammonia odor in the housing area, especially at bird level
- Watery eyes or excessive tearing
- Red, irritated, or swollen eyelids and conjunctiva
- Squinting, blinking, or keeping the eyes partly closed
- Cloudy eye surface, corneal ulcer, or apparent vision loss in severe cases
- Nasal discharge
- Sneezing, coughing, or head shaking
- Noisy breathing, open-mouth breathing, or increased respiratory effort
- Reduced appetite or poor interest in feed and water
- Lethargy, weakness, or poor growth/body condition with ongoing exposure
Mild exposure may start with tearing, squinting, and a strong odor in the pen. Moderate cases often include red eyes, nasal irritation, coughing, and reduced appetite. Severe cases can involve open-mouth breathing, marked weakness, corneal injury, or a goose that cannot find feed and water normally.
See your vet immediately if breathing looks labored, the eyes are swollen shut or cloudy, the goose is down, or more than one bird is affected. When several geese show signs at once, poor ventilation or wet bedding is often part of the problem and the whole environment needs attention right away.
What Causes Ammonia Toxicity in Geese?
The usual cause is buildup of ammonia gas from droppings in wet bedding, litter, or manure. Bacteria break down uric acid in bird waste and release ammonia. Risk rises when housing is damp, bedding is caked, stocking density is high, or ventilation is reduced to hold in heat.
Cold weather is a common setup for trouble. Barns and coops may be closed tightly, but moisture from droppings and drinking water still accumulates. Once litter moisture climbs, ammonia production increases. In poultry, litter moisture above about 25% is associated with increased ammonia release, and poor airflow lets that gas stay at the level where birds breathe.
Water leaks, spilled drinkers, poor drainage, and infrequent bedding changes all make the problem worse. Geese also create wetter conditions than many other birds because they use and splash water heavily. That means pens, shelters, and night housing can become ammonia-prone faster than pet parents expect.
Less commonly, geese may be exposed to irritating ammonia-containing fumes from cleaning mistakes, including mixing bleach with ammonia-based products. Any strong chemical odor around birds should be treated seriously, because avian airways are very sensitive to inhaled fumes.
How Is Ammonia Toxicity in Geese Diagnosed?
Your vet usually diagnoses ammonia toxicity by combining the history, the housing setup, and the goose's exam findings. Important clues include a strong ammonia smell, wet or caked bedding, multiple birds with eye or respiratory irritation, and signs that improve after the birds are moved to cleaner air.
On exam, your vet may look for conjunctivitis, corneal ulcers, nasal irritation, abnormal lung or airway sounds, dehydration, and weight loss or weakness. In some cases, fluorescein stain may be used to check for corneal damage. If breathing is affected, your vet may recommend imaging, swabs, or other testing to rule out infections that can look similar.
Testing the environment matters too. Ammonia meters or test strips can help confirm poor air quality. In poultry, concentrations around 25-30 ppm can damage the upper respiratory tract, while 50-75 ppm can cause more severe eye injury and reduced feed intake. Those numbers help explain why a pen that 'only smells bad' may still be medically important.
Diagnosis often includes ruling out other causes of eye and breathing problems in geese, such as infectious respiratory disease, dusty bedding, mold exposure, trauma, or foreign material in the eye. Your vet can help decide which problems need treatment first.
Treatment Options for Ammonia Toxicity in Geese
Spectrum of Care means you have options. Here are treatment tiers at different price points.
Budget-Conscious Care
- Office or farm-call exam focused on breathing, hydration, and eye irritation
- Immediate removal from the ammonia source and husbandry correction plan
- Basic eye flush and supportive care instructions
- Short course of topical eye lubricant or other low-cost supportive medications if your vet feels they fit
- Monitoring appetite, drinking, droppings, and breathing at home
Recommended Standard Treatment
- Full exam plus eye stain to check for corneal ulceration
- Targeted medications chosen by your vet for pain control, eye protection, and secondary infection risk when indicated
- Fluid support if dehydrated
- Environmental review of litter moisture, ventilation, water setup, and stocking density
- Recheck exam to confirm the eyes and breathing are improving
Advanced / Critical Care
- Urgent stabilization and hospitalization
- Oxygen support or intensive respiratory monitoring when breathing is labored
- Advanced eye treatment for corneal ulceration or severe ocular burns
- Injectable medications, assisted feeding, and fluid therapy as needed
- Diagnostics such as radiographs, cytology, culture, or bloodwork when your vet believes they will change care
Cost estimates as of 2026-03. Actual costs vary by location, clinic, and individual case.
Questions to Ask Your Vet About Ammonia Toxicity in Geese
Bring these questions to your vet appointment to get the most out of your visit.
- Do my goose's signs fit ammonia irritation, infection, or both?
- Are the eyes scratched or ulcerated, and do they need stain testing today?
- Does my goose need medication, or is environmental correction likely to be enough?
- What bedding, litter depth, and cleaning schedule do you recommend for geese in my setup?
- How much ventilation is needed to lower ammonia without making the housing too cold?
- Should I separate this goose from the flock during recovery?
- What warning signs mean I should come back right away?
- Would it help to test ammonia levels in the shelter, and what level should I aim to stay under?
How to Prevent Ammonia Toxicity in Geese
Prevention starts with dry, clean housing and steady airflow. Remove wet bedding promptly, fix leaking drinkers, and keep water areas designed so geese can drink and rinse normally without soaking the entire sleeping area. Night shelters and enclosed winter housing need special attention because ammonia can build up close to the floor where birds live.
Ventilation matters even in cold weather. Holding in warmth by closing a building too tightly often backfires because moisture rises, litter gets wetter, and ammonia production increases. Aim for fresh-air exchange that controls humidity and odor while still protecting geese from drafts. If you can smell ammonia at bird level, the environment needs correction.
Use absorbent bedding, maintain adequate space, and replace caked material before it becomes a chronic problem. In larger flocks or barns, ammonia meters or test strips can be useful. Many poultry programs aim to keep ammonia below about 20-25 ppm, because higher levels are linked with airway and eye injury.
Be cautious with cleaners and disinfectants. Never mix bleach with ammonia-containing products, and do not return geese to an area until fumes are fully gone and surfaces are dry. If your flock has repeated eye or respiratory irritation, ask your vet to review both the birds and the housing plan.