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Retinopathy Globe Enlarged (RGE)
Retinopathy Globe Enlarged (RGE) Overview
Retinopathy globe enlarged (RGE) is an autosomal recessive disease that affects the Rhode Island Red chicken breed. The disease is characterized by progressive retinal degeneration resulting in blindness by the time the chick is 4 weeks of age. In the early 1980s, approximately 0.2% of chickens in several commercial flocks in the United Kingdom had RGE. Affected chickens exhibit a poor pupillary light response and development of cataracts.