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长东克什米尔山羊的肠道微生物群与肌肉内脂肪沉积相关的年龄相关的肠道微生物群

Heyu Chai¹, Haowen Cheng¹, Jiayang Sun¹

¹Gansu Key Laboratory of Herbivorous Animal Biotechnology, Faculty of Animal Science and Technology, Gansu Agricultural University, Lanzhou, Gansu, 730070, China.

Animal microbiome

|February 27, 2026

概括

羊的肌肉内脂肪沉积随着年龄的增长而增加,受肠道微生物的影响. 特定的乳头和腹腔细菌与脂肪含量相关,为肉质提供了洞察力. 这项研究强调了微生物在与年龄相关的脂肪变化中的作用.

科学领域:

动物科学动物科学
微生物学微生物学
肉类科学肉科学

背景情况:

肌肉内脂肪 (IMF) 显著影响肉类的质量特征,如柔软,多汁和味道.
国际货币基金组织的沉积受到各种因素的影响,但不同年龄组的肠道微生物群的作用仍未得到充分研究.
从微生物角度了解IMF的与年龄相关的变化对于改善肉类生产至关重要.

研究的目的:

为了评估年幼和成熟的长东克什米尔山羊之间肌肉内脂肪沉积的差异.
分析这些年龄段的IMF沉积和肠道微生物群组成之间的关联.
为了确定特定的肠道微生物可能参与调节IMF沉积.

主要方法:

一岁 (1岁) 和成熟 (4岁) 羊之间的肩肉和血脂水平的IMF含量比较.
分析肠道微生物群的多样性和构成在小肠,腹腔和结肠.
在小肠和小肠中测量短链脂肪酸 (SCFA).
斯皮尔曼相关性分析将IMF指标与特定的微生物丰度和SCFA度联系起来.

主要成果:

随着年龄的增长,IMF含量和血脂水平增加,而肝脏和十二指肠脂蛋白脂酶 (LPL) 减少.
肠道微生物多样性在年龄组之间有所不同,特定的细菌与脂质代谢有关.
在一岁的山羊中观察到某些SCFA (酸,同酸,酸,酸) 的度较高.
特定的乳头细菌 (CAG-791,Sodaliphilus,Clostridium_R,Bact_11) 和腹腔细菌 (UMGS,Hylemonella_582308) 与IMF含量和脂质资料有显著的相关性.

结论:

肠道微生物组成的年龄相关变化与龙东克什米尔山羊的肌肉内脂肪沉积有关.
特定的肠道微生物,包括乳头和腹部物种,可能在调节IMF含量方面发挥作用.
这些发现为未来研究微生物干预来调节脂肪沉积和提高肉质的研究提供了宝贵的见解.

关键词:

年龄组年龄组.血液中的脂质水平.相关性分析是一项相关性分析.我们的肠道微生物群.国际货币基金组织的存款是国际货币基金的存款.脂质代谢酶 - - 脂质代谢酶.龙东克什米尔山羊长东克什米尔山羊短链脂肪酸短链脂肪酸短链脂肪酸

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