Goiter in budgerigars

Goiter (abnormally enlarged thyroid) is often the result of dietary iodine deficiency but also has been attributed to consumption of goitrogenic substances, toxicity by iodine and other substances, and to hereditary factors, including autosomal recessive inheritance in goats. Acquired goiter remains endemic in some areas because of a lack of, or despite, iodine supplementation.
Source: Advances in Small Animal Medicine and Surgery - Category: Veterinary Research Tags: Avian Source Type: research