- Infection: A bacterial or fungal infection in the esophagus can cause inflammation and swelling. This can be caused by a variety of factors, including exposure to contaminated water or food, as well as through contact with other infected birds.
- Foreign body ingestion: If a goose swallows an object that is too large or too sharp, it can become stuck in the esophagus and cause swelling. This can lead to a blockage that prevents the goose from eating and drinking, and can also cause damage to the esophageal tissue.
- Crop impaction: The crop is an organ in the goose’s digestive system that stores food before it passes into the stomach. If the crop becomes impacted with food or other material, it can block the esophagus and cause swelling. This condition can be caused by a variety of factors, including dietary imbalances, inadequate water intake, or underlying health problems.
- Toxins: Exposure to certain toxins, such as pesticides, herbicides, or heavy metals, can cause swelling of the esophagus. This can occur through ingestion, inhalation, or skin contact.
- Trauma: Injury to the esophagus, such as from a puncture wound or a collision, can cause swelling and inflammation. This can occur through accidents, predator attacks, or as a result of handling or confinement.
If a goose is showing signs of a swollen gullet, it is important to take them to a veterinarian for evaluation and treatment. The veterinarian can determine the cause of the swelling and prescribe appropriate medications or surgical intervention if necessary.