长腰背部肌肉转录和新陈代谢的综合多态学揭示了肌内脂肪积累机制与雅克的饮食能量差异
Jingying Deng1,2, Pengjia Bao1, Ning Li3
1Lanzhou Institute of Husbandry and Pharmaceutical Sciences, Chinese Academy of Agricultural Sciences, Lanzhou 730050, China.
Biomolecules
|July 29, 2025
概括
较高的饮食能量水平显著增加了帕米尔雅克的肌肉内脂肪 (IMF) 沉积,改善了肉质. 这是由受特定基因影响的脂质代谢驱动的,为牲畜营养提供了洞察力.
科学领域:
- 动物科学动物科学
- 营养科学 营养科学
- 遗传学 是一个遗传学.
背景情况:
- 肌肉内脂肪 (IMF) 对肉类质量特征至关重要,如切削力和损失.
- 国际货币基金组织的存款受营养和遗传因素的影响.
- 了解国际货币基金组织的监管是改善畜牧业生产的关键.
研究的目的:
- 在不同饮食能量水平下,研究调节帕米尔长背肌 (LD) 中IMF沉积的分子机制.
- 评估不同能量饮食对肉质和IMF含量的影响.
- 确定参与IMF沉积的关键基因和代谢途径.
主要方法:
- 在低,中,高饮食能量群体中对肉类质量特征的比较分析.
- 结合转录学和脂质代谢学来分析分子差异.
- 鉴定差异表达的基因和脂质代谢产物.
主要成果:
- 与低能耗相比,高能耗和中能耗饮食显著改善了肉质.
- 高能耗饮食组在LD中显示出显著更高的IMF含量.
- 脂质代谢,包括甘油三 (TG),酸 (PS) 和酸 (LPC),以及SFRP4,FABP4和DGAT2等基因,是IMF沉积的关键因素.
结论:
- 饮食能量水平在调节IMF沉积量和帕米尔雅克的肉质方面发挥着至关重要的作用.
- 能量依赖的表观遗传机制和脂质基因相互作用对于IMF沉积在高原反动物中至关重要.
- 这些发现为优化鱼营养和提高肉类生产以实现可持续畜牧业提供了分子目标.
更多相关视频
07:46Author Spotlight: Improving Beef Cattle Nutrition and Production with a Focus on Feed Efficiency and Meat Quality Traits Through Advanced Biochemical and Molecular Assays
Published on: July 12, 2024
638
05:59Author Spotlight: Deciphering the Cellular Mysteries of Intermuscular Adipose Tissue in Humans
Published on: May 3, 2024
843
相关概念视频
01:06Fats as Energy Storage Molecules
Triglycerides are a form of long-term energy storage molecules. They are made of glycerol and three fatty acids. To obtain energy from fat, triglycerides must first be broken down by hydrolysis into their two principal components, fatty acids and glycerol. This process, called lipolysis, takes place in the cytoplasm. The resulting fatty acids are oxidized by β-oxidation into acetyl-CoA, which is used by the Krebs cycle. The glycerol that is released from triglycerides after lipolysis directly...
01:24Muscle Recovery and Fatigue
Muscle fatigue refers to the decline in a muscle's ability to maintain the force of contraction after prolonged activity. It primarily stems from changes within muscle fibers. Even before experiencing muscle fatigue, one may feel tired and have the urge to stop the activity. This response, known as central fatigue, occurs due to changes in the central nervous system, namely the brain and spinal cord. While there is no single mechanism that induces fatigue, it may serve as a protective response...