China Animal Husbandry and Veterinary Medicine ›› 2024, Vol. 51 ›› Issue (4): 1561-1572.doi: 10.16431/j.cnki.1671-7236.2024.04.024

• Genetics and Breeding • Previous Articles    

Research Progress on Influencing Factors and Transformation of Skeletal Muscle Fiber Types in Poultry

XIE Binghong1,2, SHAN Yanju1, FAN Chenyu1, XUE Fuguang2, WU Hongxiang2, JU Xiaojun1, SHU Jingting1, LIU Yifan1,3   

  1. 1. Key Laboratory for Poultry Genetics and Breeding of Jiangsu Province, Jiangsu Institute of Poultry Science, Yangzhou 225125, China;
    2. Nanchang Key Laboratory of Animal Health and Safety Production, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330000, China;
    3. Jiangsu Poultry Science Institute S&T Innovation Co., Ltd., Yangzhou 211412, China
  • Received:2023-09-02 Published:2024-03-27

Abstract: Muscle fibers are the basic units that form into muscle tissue.The muscle fiber types are closely related to meat quality,and commonly altered by external stimuli such as body growth and development,nutrition,and feeding environment.In recent years,studies on the formation and conversion patterns of poultry muscle fiber types have become the hotpot due to the attention given by consumers and breeders to meat quality.In addition,with the development of omics research technology,transcriptomics,proteomics and other technologies have been widely applied in the regulatory mechanism study of poultry muscle fiber types,which has greatly promoted relevant research progress.To fully understand the current research on muscle fiber type transformation is an important theoretical basis for the subsequent research on related meat quality and regulatory mechanism.The author introduces the composition of muscle fiber and the classification methods of different types of poultry muscle fiber.Additionally,the associations between the muscle fiber type and poultry different meat qualities such as color,pH,water binding capacity and tenderness traits are briefly described.This paper also summarizes the effects of growth,breed,environment,and feeding procedures on muscle fiber type,and focuses on the existing advances in molecular regulation studies,aiming to provide basic theoretical support and reference for future research.Finally,the future breeding direction of high-quality broilers is proposed.It is hoped that with the development of modern molecular biotechnology,cutting-edge technologies such as single cell/space omics technology,gene editing technology based on CRISPR/ Cas9 system can be widely used in the field of muscle fiber type research,constantly improve the mechanism of muscle fiber type conversion and establish the molecular breeding method of meat quality traits in poultry.

Key words: poultry; meat quality; muscle fiber type; muscle fiber type conversion

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