中国畜禽种业2026，Vol.22Issue(1)：67-80,14.
不同品种肉牛肌内脂肪沉积机制研究进展
Research progress on the intramuscular fat deposition mechanism in different cattle breeds
摘要
Abstract
With the optimization and upgrading of consumption levels,consumers are increasingly demanding higher quality in beef products.Intramuscular fat(IMF),as an important indicator for evaluating the quality of livestock meat,significantly influences beef tenderness and flavor.Meanwhile,the IMF content in beef cattle is affected by multiple factors,including breed,sex,feeding management,and nutritional composition.Advances in high-throughput sequencing and molecular biology have enabled the identification of candidate genes and genetic variants associated with IMF through integrated omics approaches.These developments have facilitated a systematic analysis of the molecular regulatory mechanisms underlying IMF deposition,thereby providing a theoretical foundation for improving beef quality and guiding breeding programs.Based on the origin of beef cattle breeds,this paper classifies units as Chinese local breeds,Chinese cultivated breeds,and Chinese introduced breeds.Focusing on IMF traits,we discuss influencing factors,candidate genetic markers,and molecular mechanisms,aiming to elucidate the molecular basis of IMF deposition and offer theoretical support for genetic improvement and innovative utilization of beef quality.关键词
肉牛/肌内脂肪/候选基因/分子机制Key words
Beef cattle/Intramuscular fat/Candidate genes/Molecular mechanism分类
农业科技引用本文复制引用
马依琳,徐佳敏,蔡含芳,梁栋,付彤,高腾云,孙宇,张天留..不同品种肉牛肌内脂肪沉积机制研究进展[J].中国畜禽种业,2026,22(1):67-80,14.基金项目
河南省高等学校大学生创新训练项目(202510466031) （202510466031）
河南省科技攻关项目(242102111002) （242102111002）
河南农业大学动物科技学院第二届大学生科技创新项目(2024DXSKC10). （2024DXSKC10）
