Affecting Factors of Intramuscular Fat Deposition in Animals and Their Molecular Mechanisms
Intramuscular fat(IMF)refers to the fat deposited in the muscle and between muscle fibers.Its con-tent is significantly positively correlated with muscle juiciness,shear force,tenderness and meat quality.There-fore,reasonable IMF content will help improve the quality and flavor of meat products.The process of adipo-genesis involves a complex and highly coordinated gene expression regulation program,which is affected by many factors.Therefore,this paper reviews the transcription factors,key metabolic enzymes,signaling path-ways and non-coding RNAs that affect animal IMF deposition.Studies indicates that transcription factors have been found to play an important role in regulating adipocyte differentiation and fat synthesis,enzyme-catalyzed reactions mediate the key steps of lipogenesis and degradation;in addition,intramuscular fat deposition can al-so be regulated by regulating the expression of specific signaling pathways and non-coding RNAs.In-depth un-derstanding of these molecular mechanisms is of great significance for the improvement of meat quality and the production of high-quality meat products.This review provides a reference for further research and application of these molecular mechanisms,in order to improve the quality of meat products and meet consumers'demand for high-quality meat products.[Chinese Journal of Animal Nutrition,2024,36(3):1502-1514]
万方数据
维普
