China Animal Husbandry and Veterinary Medicine ›› 2025, Vol. 52 ›› Issue (2): 686-697.doi: 10.16431/j.cnki.1671-7236.2025.02.019

• Nutrition and Feed • Previous Articles    

Research Progress on Inosine Monophosphate in Livestock and Poultry Muscle

ZHANG Yao, ZHU Liyang, YANG Ying, HOU Jingyan, HAN Taoze, WANG Kailong, XU Yaxi, SHENG Xihui   

  1. College of Animal Science and Technology, Beijing University of Agriculture, Beijing 102206, China
  • Received:2024-05-21 Published:2025-01-24

Abstract: Inosine monophosphate (IMP),as an intermediate product of purine metabolism,is involved in intracellular energy metabolism and signal transduction.Meanwhile,IMP is a key flavor precursor in livestock and poultry muscle.It has complex interactions with amino acids,sugars and other substances to produce aroma compounds,which significantly improves the umami and aroma of livestock and poultry muscle.IMP content is an important evaluation index for meat flavor and a significant factor affecting the economic value of livestock and poultry muscle products.Therefore,the impact of IMP on meat quality and the genetic regulatory mechanisms of IMP deposition have garnered significant attention.The synthesis and metabolism of IMP are regulated by a network of numerous genes.With the development of modern molecular biology techniques,researchers have delved into the synthesis and metabolic pathways of IMP,revealing several key enzymes and regulatory genes.Currently,multi-omics technologies have been widely applied to elucidate the genetic mechanism underlying important economic traits in livestock and poultry,and further breakthroughs are expected in understanding the regulatory mechanism of IMP deposition in livestock and poultry muscle.This article provides an overview of the research progress on IMP in livestock and poultry muscle,introduces the structure and detection methods of IMP,outlines its impact on meat quality,reviews the mechanism of IMP synthesis and metabolism,and analyzes the main factors affecting IMP synthesis and metabolism.This review serves as a theoretical reference for further research on the synthesis and metabolism mechanism of IMP,the regulation mechanism of meat flavor in livestock and poultry,and the genetic improvement of livestock and poultry breeding.

Key words: inosine monophosphate; livestock and poultry; meat quality; mechanism of action

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