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Symptoms:–
- Lethargic and fluffed
- Vomiting or regurgitation – there is usually mucus in the birds head
- Often there is ongoing “pumping” action of the neck.
- Sometimes they will seizure
- Pass watery green droppings
- Severely affected birds may die suddenly
- A more common syndrome is that of low level poisoning with vague clinical signs and pet birds that are just?not well.
Disease Causing Vomiting in Birds – Avian Vet
1) Infectious disease which include bacterial, viral fungal and parasitic disease
2) Metabolic disease e.g. enlarged Thyroid , liver disease, peritonitis
3) Nutritional cause e.g. high protein diets.
4) Toxicity Heavy metal toxicity (Zinc and lead are most common), plant toxicities- Is the most common disease we see that cause vomiting
5) Physical obstructions e.g. foreign body in the crop, overfeeding, tumors – especially fibre from ropes and toys
6) Trauma esp. crop burn
7) Allergic food
8) Behavioural usually not pathological e.g. courtship behaviour, crop milk feeding in pigeons.
9) Cancer causing nausea and obstructions
10) Iatrogenic / caused by treatments from drugs esp. doxycycline, nitoimadazoles
11) Other e.g. motion sickness when travelling to vet show. To help avian veterinarians work up medical caused of vomiting veterinarians often use the term regurgitation for finely controlled vomiting that is part of normal physiology that a healthy bird may do. They bob their head up and down and then bring up softened undigested food into their mouth and place the regurgitated food carefully in a desired place. Vomiting is more uncontrolled ejection of food from both the crop and stomach that is spat out, and flicked around the cage, often landing on the head and neck and is always a sign of disease.
The four most common causes of vomiting in pet birds that we see in our bird vet clinic are:
1) Trichomoniasis or canker in budgies or budgerigars is a protozoan disease . Left untreated it is often fatal?? we do crop washes.
2) In newly purchased. budgerigars and birds we see for health checks for diagnosis. Often the birds may show disease signs months after purchase. This is the same organism that causes canker in pigeons and doves.
3) Another common cause of vomiting is megabacterial associated fungal disease. This fugal disease often has a long incubation period i.e. it takes a long time for disease to develop after infection. And along with vomiting the birds show other gastrointestinal signs like loose droppings, undigested seeds in the droppings and generally?? going light, with gradual weight loss.Most common in budgerigars.
3) Heavy metal poisoning associated with the ingestion of lead and or zinc is the most common cause in large parrots.
4) After crop dosing and injecting certain medications some birds will vomit..
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