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在不同蛋白质水平的饮食中补充托芬对肉生产性能的影响

Kailai Xie¹, Xiajie Feng¹, Shuqing Zhu¹

¹Guangdong Provincial Key Laboratory of Animal Nutrition Control, Guangzhou 510642, China.

Animals : an open access journal from MDPI

|July 13, 2024

概括

牛肉饮食中的托芬补充剂会影响料摄入量和新陈代谢. 雄性肉受益于添加的托芬,以改善料转化,而低蛋白饮食的雌性可能由于增加GLP-1和胆酸信号而减少摄入量.

科学领域:

动物科学动物科学
营养生物化学营养生物化学
禽畜科学禽畜科学禽畜科学

背景情况:

托芬对猪至关重要,并显示出提高家禽表现的潜力.
饮食中的蛋白质水平显著影响肉的生长和新陈代谢.

研究的目的:

调查托补充剂对 brojler 料摄入量,平均每日增益 (ADG) 和料转换比率 (F/G) 的影响.
通过不同饮食蛋白质度 (低,中,高) 检查这些影响.

主要方法:

180只肉 (21天大) 被分配到12组,在28天内食含有17.2%,19.2%或21.2%蛋白质的饮食,有或没有补充酸盐.
每周监测料摄入量和体重.
血清生物化学标志物 (GLP-1,胆固醇,胆汁酸) 和基因表达 (FXR,GCG,GLP-1R) 在阴茎和下丘脑中被分析.

主要成果:

接受中等蛋白质饮食并补充托的雄性肉表现出改善的料转换比率 (F/G).
雌性肉在低蛋白饮食中添加了托芬,其料摄入量减少,血清GLP-1,胆固醇,胆汁酸增加,并增加了叶FXRmRNA表达.
低垂体FXRmRNA和状体GCG和GLP-1RmRNA水平显示,雌性肉在低蛋白,托补充饮食中的雌性肉的增加趋势.

结论:

饮食中托的度会影响肉的料摄入量和代谢特征.
在标准饮食中,补充托芬对雄性肉F/G有好处.
在低蛋白饮食中,托芬可能会通过GLP-1和胆酸通路暂时减少母肉的料摄入量.

关键词:

这就是GLP-1.胆酸胆酸是一种胆酸.brojler 肉肉是一个饮食中的蛋白质水平.托芬三聚氨酸是什么

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