Acta Veterinaria et Zootechnica Sinica ›› 2022, Vol. 53 ›› Issue (7): 2057-2065.doi: 10.11843/j.issn.0366-6964.2022.07.003

• REVIEW • Previous Articles     Next Articles

Regulation Mechanism of Bone Development in Broilers

WANG Cuiyue1,2, LI Mingrui3, GAO Yushi1, CHEN Dawei1*   

  1. 1. Jiangsu Institute of Poultry Science, Yangzhou 225125, China;
    2. Shandong Agricultural University, Tai'an 271018, China;
    3. Shanxi Agricultural University, Taigu 030801, China
  • Received:2021-10-14 Online:2022-07-23 Published:2022-07-23

Abstract: Bone development is mainly accomplished by endochondral ossification in broilers. In the process of endochondral ossification, growth plate chondrocytes undergo proliferation, hypertrophy, transdifferentiation and cartilage matrix mineralization, and eventually osteoblasts gradually replace cartilage primordia to achieve linear bone elongation. Endochondral osteogenesis is a complex and precise process, regulated by multiple signaling and transcription factors such as SOX9, RUNX2, MEF2C, OSX, TGF-β, BMP2, FGFs, IHH and PTHrP, etc. These regulators are expressed by chondrocytes in different zones of the growth plate or specifically regulate chondrocyte proliferation and differentiation, vascular invasion and so on. In poultry breeding, leg disease often occurs in broilers and is difficult to cure, but there are few studies on the pathogenesis of broiler leg disease. This article reviewed the process of bone formation and its specific molecular regulation mechanism, providing reference for understanding the pathogenesis and reasonable treatment of broiler leg disease.

Key words: bone, growth plate, chondrocyte, endochondral ossification, regulatory factor, broiler

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