Illustrated Articles
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Egg yolk peritonitis is commonly diagnosed in laying hens when yolk from a developing egg or an incompletely shelled or ruptured egg is deposited within the body cavity rather than passing normally from the ovary, into the oviduct, and then out of the body as a fully shelled egg. The yolk material that is released into the coelomic cavity causes inflammation of the peritoneum and typically the development of fluid within the coelom. Affected birds will often stop laying, become less active, have distended abdomens, and have difficulty breathing. Veterinarians diagnose egg yolk peritonitis through a combination of physical examination findings, blood testing, and imaging with radiographs or ultrasound. Treatment is supportive, with supplemental feeding, anti-inflammatory medication, antibiotics, hormones to prevent further egg laying. With more advanced cases, oxygen therapy and fluid drainage from the abdomen may be necessary.
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A feather cyst is a malformation of a feather follicle whereby the feather(s) do not exit the skin, and instead become buried in a cyst under the skin. They can become quite large and be painful to the pet. These cysts require veterinary attention and if injured, may bleed extensively.
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Feather loss occurs either because the bird is truly losing feathers or because the bird, or its cage-mate, is picking out its feathers. Feather Destructive Behavior (FDB) is a general classification that describes the many types of damage a bird can do to its own feathers, including feather picking. Feather loss and feather-picking can also be caused by diseases that result in irritation or pain for the bird, or damage to, or inappropriate growth of feathers. Feather loss and feather-picking are complicated problems. For specific advice, your bird should have a thorough work-up by a veterinarian familiar with birds.
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Kidney disease is relatively common in birds, especially budgies, and may present as an acute or chronic problem. Some of the clinical signs are very characteristic of kidney disease but many others are non-specific. This handout explains these signs, as well as how kidney disorders in birds can be diagnosed and treated.
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Liver disease can occur in any avian species but is most common in cockatiels, budgies, Amazon parrots, lories, and mynah birds. Because the typical clinical signs are non-specific and descriptive of many different diseases, diagnostic tests are highly recommended. Treatment options depend on the diagnosis and can range from diet modification to hospitalization.
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Obesity is a major problem in older birds on seed-based diets and can contribute to diseases such as arteriosclerosis, atherosclerosis (fat deposits in major arteries), and fatty liver disease (hepatic lipidosis). Unlike their wild counterparts, pet birds are not given as much opportunity for daily exercise. Pet birds often burn off very few calories in their daily lives. Switching a bird from an all-seed diet to a more suitable diet consisting mainly of pellets, with smaller amounts of fresh vegetables and fruit, will decrease its overall daily intake of calories.
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Polyfolliculosis is a condition where several feathers grow out of one feather follicle. These feathers may be irritating, causing the bird to pick at them or pluck them out. There is no specific treatment for this condition.
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Avian polyomavirus infection (APV) of pet birds belongs to the family Polyomaviridae. APV can cause benign feather lesions in budgies, slow crop emptying in weanling parrots, hemorrhages on the skin, or acute death. Species particularly susceptible to APV infection include budgies, Eclectus parrots, Caiques, and hawk-head parrots. Clinical signs, diagnostic testing, and preventive measures are explained in this handout.
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Poxviruses can infect many species of birds, and each species of bird may have its own unique species of poxvirus. This handout explains three forms of the virus: cutaneous, diphtheroid, and septicaemic. Each of these forms has distinct clinical signs. Diagnosis, treatment, and ways to minimize the risk of infection in your bird are explained.
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Telemedicine is the act of practicing medicine from a distance and your appointment will be conducted by a licensed veterinarian. Before your appointment, gather information on your pet’s history and your current concern. Look at a calendar and write down a timeline of your pet’s problems. Be prepared to answer questions that you would normally be asked at an in-person appointment. Write notes to help you remember everything. Most telemedicine appointments involve the use of some type of video chat. Conduct your visit in a quiet area with good lighting and have your pet with you before the call starts. Not all concerns can be addressed through telemedicine. If your veterinarian is unable to arrive at a diagnosis via telemedicine, he or she can help you determine the next step for your pet to ensure that he or she receives optimal care.
