#rumpless_chickens

Rumpless chickens

Chickens with caudal dysplasia

Rumpless chickens are characterised by caudal dysplasia, the absence of the pygostyle or caudal appendage – the "parson's nose". This is the result of inheritance of an autosomal dominant trait. The mutation which causes it is unknown; two candidates have been proposed.

Fri 7th

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