畜牧兽医学报 ›› 2022, Vol. 53 ›› Issue (12): 4271-4282.doi: 10.11843/j.issn.0366-6964.2022.12.013

• 遗传育种 • 上一篇    下一篇

基于血浆非靶代谢组学探究急性笼养应激对蛋鸭代谢的影响

刘水兵1,2, 方文杰1,2, 李言凯1,2, 张文韬1,2, 刘三凤1,2, 陈彪1,2*   

  1. 1. 江西农业大学动物科学技术学院, 南昌 330045;
    2. 江西农业大学家禽研究所, 南昌 330045
  • 收稿日期:2022-04-24 出版日期:2022-12-23 发布日期:2022-12-25
  • 通讯作者: 陈彪,主要从事家禽遗传育种与繁殖研究,E-mail:chenbiao@jxau.edu.cn
  • 作者简介:刘水兵(1998-),男,江西万载人,硕士生,主要从事家禽遗传育种与生产研究,E-mail:18879138275@163.com
  • 基金资助:
    国家自然科学基金(32102541);江西省现代家禽产业技术体系(JXARS-09);江西省自然科学基金(20212BAB215016)

Effect of Acute Cage Stress on the Metabolism of Laying Ducks Studied by Plasma Nontargeted Metabolomics

LIU Shuibing1,2, FANG Wenjie1,2, LI Yankai1,2, ZHANG Wentao1,2, LIU Sanfeng1,2, CHEN Biao1,2*   

  1. 1. College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang 330045, China;
    2. Poultry Research Institute of Jiangxi Agricultural University, Nanchang 330045, China
  • Received:2022-04-24 Online:2022-12-23 Published:2022-12-25

摘要: 随着环保政策改革和养殖业的集约化、规模化发展,蛋鸭叠层式笼养模式的应用越来越广泛,笼养应激对蛋鸭的影响逐渐受到重视。本研究旨在利用非靶向代谢组学分析蛋鸭平养与笼养模式下血浆代谢物的差异。随机挑选平养组(floor-water rearing system,FWR组)和叠层式笼养组(cage-rearing system,CR组)蛋鸭各10只,跖骨静脉采血,通过高效液相色谱-质谱(HPLC-HRMS)非靶向代谢组学技术获得20个在不同饲养模式下的血浆代谢物图谱,经T检验等分析,取差异倍数(Fold-change) ratio≥2或ratio≤1/2、变量重要性(variable importance in projection,VIP)>1、q值<0.05为筛选条件得到显著差异代谢物并作通路富集分析。结果共筛选到差异代谢物30种,其中上调表达的差异代谢物14种(P<0.05),下调表达的差异代谢物16种(P<0.05)。差异代谢物种类主要有甘油磷脂(glycerophospholipids,16种)、脂肪酰基(fatty acyls,4种)、羧酸及其衍生物(carboxylic acids and derivatives,2种),还包括苯丙酸、酚类、有机硫酸及其衍生物、甾醇脂质、嘌呤核苷、有机氧化合物、类固醇和类固醇衍生物、有机磺酸及其衍生物等代谢物;共富集到4条差异代谢通路:初级胆汁酸生物合成、甘油磷脂代谢通路发生极显著富集(P<0.01);次级胆汁酸生物合成、牛磺酸和亚牛磺酸代谢通路发生显著富集(P<0.05)。综上,非靶向代谢组学分析得到平养组和叠层式笼养组蛋鸭血浆中胆汁酸、牛磺酸以及甘油磷脂等显著差异,为后续深入探讨笼养模式影响蛋鸭的健康机制,解决蛋鸭笼养应激提供理论基础,促进水禽笼养技术的发展和推广。

关键词: 笼养蛋鸭, 平养, 非靶向代谢组学, 笼养应激, 血浆

Abstract: Investigating caging stress in laying ducks has become extremely important since the environmental policies have changed and the duck industry has grown. This study aims to explore the plasma metabolite profiles of laying duck raised in floor-water rearing system (FWR) and cage-rearing system (CR) using nontargeted metabolomics. The metatarsal vein blood was taken from ten laying ducks from each experimental group for HPLC-HRMS. Differential metabolites were identified with Fold-change ratio≥2 or ≤1/2, VIP>1 and q value<0.05. A total of 30 differential metabolites were obtained based on the screening conditions, of which 14 were up-regulated (P<0.05) and 16 were down-regulated (P<0.05). Differential metabolites included 16 glycerophospholipids, 4 fatty acyls, 2 carboxylic acids and derivatives, as well as phenylpropionic acid, phenols, organic sulfuric acids and derivatives, sterol lipids, purine nucleosides, organooxygen compounds, steroids and steroid derivatives, steroids and steroid derivatives. Primary bile acid biosynthesis and glycerophospholipid metabolism (P<0.01), as well as the secondary bile acid biosynthesis and taurine and hypotaurine metabolism (P<0.05) were found to be enriched by the pathway enrichment analysis. The results showed substantial variations in plasma bile acids, taurine, and glycerophospholipids between FWR and CR. The insights gained from this study may be useful for the development and promotion of waterfowl husbandry by clarifying the mechanism of caging stress in laying duck industry.

Key words: cage-rearing laying ducks, floor-water combination rearing system, nontargeted metabolomics, cage-rearing stress, plasma

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