饲粮维生素E对肉仔鸡肌内脂肪沉积和胸肌转录组的影响。

IF 1.8 4区 农林科学 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE Journal of Poultry Science Pub Date : 2023-01-25 DOI:10.2141/jpsa.2023006
Min Zhang, Weiming Lin, Qiu Wu, Yan Li, Donghong Chen, Lingyu Liu, Yanfa Sun
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引用次数: 2

摘要

维生素E是动物必需的微量营养素。本研究旨在探讨维生素E对肉仔鸡肌内脂肪(IMF)沉积及胸肌转录组的影响。将爱拔益加鸡分为5个处理组,分别饲喂在基础饲粮中添加0、20、50、75和100 IU/kg维生素E的试验饲粮。记录体重、胴体性能和IMF含量。通过RNA测序获得对照组和处理组(100 IU/kg维生素E) 35日龄鸡胸肌转录组谱。结果表明,饲粮中添加100 IU/kg维生素E可显著提高35 d雏鸡体内IMF沉积量。与对照组相比,100 IU/kg维生素E处理组共鉴定出159个差异表达基因(DEGs),其中上调基因57个,下调基因102个。这些deg在涉及肌肉发育和脂质代谢的13个基因本体术语中显著富集;三条信号通路,包括丝裂原活化蛋白激酶和FoxO信号通路,在肌肉和脂质代谢中起关键作用;与骨骼和肌肉系统发育相关的28种生物功能类别;17类脂质代谢功能;以及三个脂质代谢和肌肉发育相关的网络。本研究确定的deg、途径、功能类别和网络为维生素E对肉仔鸡IMF沉积的调节作用提供了新的见解。因此,饲粮中添加100 IU/kg维生素E更有利于肉鸡生产。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Effects of Dietary Vitamin E on Intramuscular Fat Deposition and Transcriptome Profile of the Pectoral Muscle of Broilers.

Vitamin E is an essential micronutrient for animals. The aim of this study was to determine the effect of vitamin E on intramuscular fat (IMF) deposition and the transcriptome profile of the pectoral muscle in broiler chickens. Arbor Acres chickens were divided into five treatment groups fed a basal diet supplemented with 0, 20, 50, 75, and 100 IU/kg dietary DL-α-tocopheryl acetate (vitamin E), respectively. Body weight, carcass performance, and IMF content were recorded. Transcriptome profiles of the pectoral muscles of 35-day-old chickens in the control and treatment groups (100 IU/kg of vitamin E) were obtained by RNA sequencing. The results showed that diets supplemented with 100 IU/kg of vitamin E significantly increased IMF deposition in chickens on day 35. In total, 159 differentially expressed genes (DEGs), including 57 up-regulated and 102 down-regulated genes, were identified in the treatment (100 IU/kg vitamin E) group compared to the control group. These DEGs were significantly enriched in 13 Gene Ontology terms involved in muscle development and lipid metabolism; three signaling pathways, including the mitogen-activated protein kinase and FoxO signaling pathways, which play key roles in muscular and lipid metabolism; 28 biofunctional categories associated with skeletal and muscular system development; 17 lipid metabolism functional categories; and three lipid metabolism and muscle development-related networks. The DEGs, pathways, functional categories, and networks identified in this study provide new insights into the regulatory roles of vitamin E on IMF deposition in broilers. Therefore, diets supplemented with 100 IU/kg of vitamin E will be more beneficial to broiler production.

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来源期刊
Journal of Poultry Science
Journal of Poultry Science AGRICULTURE, DAIRY & ANIMAL SCIENCE-
CiteScore
2.80
自引率
13.30%
发文量
26
审稿时长
12 months
期刊介绍: The Journal of Poultry Science will publish original reports and reviews which either make an original contribution to fundamental science or are of obvious application to the industry. Subjects which are covered include: breeding and genetics, nutrition and feeds, physiology, reproduction, immunology, behavior, environmental science, management and housing welfare, processing and products, and health in poultry. Submission of original articles to the Journal is open to all poultry researchers. The review articles are invited papers written by international outstanding researchers. Articles will be published in English, American style.
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