家畜肌内脂肪沉积的营养调控研究进展

doi:10.16431/j.cnki.1671-7236.2025.10.019

摘要/Abstract

摘要： 肌内脂肪(intramuscular fat，IMF)是影响肌肉品质的关键指标，但受脂肪沉积时序性的影响，IMF沉积所需的饲养周期长、生产成本高。研究利用营养调控手段，控制更多的脂肪沉积为IMF，是行业研究的热点和难点。作者简述了IMF的形成与组成，调控IMF沉积的关键因子(包括过氧化物酶体增殖物激活受体、脂肪酸结合蛋白、固醇调节元件结合蛋白等)，并分析了饲粮能量水平和淀粉类型、维生素A、氨基酸、天然植物及其提取物等营养因素对家畜IMF沉积的影响。笔者建议利用多组学技术解析不同部位脂肪组织的脂代谢差异，结合营养调控和组学技术深入阐明各营养因素的分子机制，研究多营养因素协同作用的效果，从而为家畜IMF沉积提供创新性的营养调控方案，助力优质畜产品生产。

关键词: 肌内脂肪; 脂肪代谢; 营养调控; 家畜生产

Abstract: Intramuscular fat (IMF) is a key indicator affecting muscle quality,but due to the timing of fat deposition.IMF deposition requires a long feeding cycle and high production cost.It is a hot and difficult point in the industry to study the use of nutrition regulation means to control more fat deposition as IMF.This review briefly describes the formation and composition of IMF,the key factors regulating IMF deposition (including peroxisome proliferator-activated receptors,fatty acid-binding proteins and sterol regulatory element-binding proteins,etc.),and analyzes the effects of dietary energy level and nutritional factors such as starch type,vitamin A,amino acids,natural plants and their extracts on IMF deposition in livestock.The authors suggest using multi-omics technology to analyze the differences of lipid metabolism in different parts of adipose tissue,combined with nutritional regulation and omics technology to further clarify the molecular mechanism of various nutritional factors,and study the effect of the synergy of multiple nutritional factors,so as to provide innovative nutritional regulation and control scheme for IMF deposition in livestock,and help the production of high-quality livestock products.

Key words: intramuscular fat; fat metabolism; nutritional regulation; livestock production

中图分类号:

S811.2

杨茗, 张相伦, 姬凯茜, 盛清凯, 赵红波, 王中华. 家畜肌内脂肪沉积的营养调控研究进展[J]. 中国畜牧兽医, 2025, 52(10): 4734-4741.

YANG Ming, ZHANG Xianglun, JI Kaixi, SHENG Qingkai, ZHAO Hongbo, WANG Zhonghua. Research Progress on Nutritional Regulation of Intramuscular Fat Deposition in Livestock[J]. China Animal Husbandry & Veterinary Medicine, 2025, 52(10): 4734-4741.

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