• Source: Rumpless chickens

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.: 10 




History



Rumplessness in chickens has been documented for centuries. An early description is that of the Bolognese ornithologist Ulisse Aldrovandi in his Ornithologiae Tomus Alter of 1600.: 127 : 318 




Rumpless breeds


Rumpless breeds of chicken include: the Araucana or Rumpless Araucana of South America, both large fowl and bantam;: 45  the Belgian Barbu de Boitsfort, Barbu de Grubbe and Barbu d'Uccle bantams;: 75  the Japanese Uzurao, a rumpless equivalent of the Tosa-Kojidori bantam,: 95  and Ingie (large fowl) from Kagoshima Prefecture;: 103  the Rumpless Game of the United Kingdom (both large fowl and bantam), sometimes called the Manx Rumpy or Persian Rumpless;: 272 : 65  and the German Ruhlaer Zwerg-Kaulhühner or Rumpless Booted Bantam.: 92 




References

Kata Kunci Pencarian:

• Rumpless chickens
• Araucana
• Rumpless Game
• Ameraucana
• List of chicken breeds
• List of breeds in the British Poultry Standards
• Ear tuft
• Barbu d'Everberg
• Serama
• Walter Landauer