ACTA VETERINARIA ET ZOOTECHNICA SINICA ›› 2016, Vol. 47 ›› Issue (3): 417-422.doi: 10.11843j.issn.0366-6964.2016.03.001

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The Research Progress of Beak Deformity

BAI Hao,SUN Yan-yan,CHEN Ji-lan*   

  1. (The Key Laboratory of Farm Animal Genetic Resources and Germplasm Innovation of Ministry of Agriculture,Institute of Animal Science,Chinese Academy of Agricultural Sciences,Beijing 100193,China)
  • Received:2015-04-27 Online:2016-03-23 Published:2016-03-23

Abstract:

Beak is an external anatomical structure of birds.Its functions are the same as lips and teeth of mammals.Beak deformity,a new skeletal disease,was first reported in birds and gained more and more attention recently.Beak deformity(normally a crossed beak) has also been found in some indigenous chicken breeds in China.The chicken with a deformed beak has problems in eating and drinking,which could cause slow growth and early death.This causes economics loss and is harmful to the animal welfare.Until now,the origin,morphosis,growth and development of beak has less been studied.The mechanism of beak deformity in chickens is not clear yet.The study of beak deformity in Darwin’s finches has a greater progress.This article summarized these related studies in birds,aiming to provide guidance for the study of beak development and molecular mechanism of beak deformity in chickens.

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