畜牧兽医学报 ›› 2023, Vol. 54 ›› Issue (8): 3173-3182.doi: 10.11843/j.issn.0366-6964.2023.08.005

• 综述 • 上一篇    下一篇

过瘤胃葡萄糖对围产期奶畜营养调控的研究进展

吴志立, 姚军虎, 雷新建*   

  1. 西北农林科技大学动物科技学院, 杨凌 712100
  • 收稿日期:2022-12-16 出版日期:2023-08-23 发布日期:2023-08-22
  • 通讯作者: 雷新建,主要从事反刍动物营养调控研究,E-mail:leixinjian@nwafu.edu.cn
  • 作者简介:吴志立(2001-),男,江西丰城人,本科生,主要从事动物科学研究,E-mail:wzl1295354914@163.com
  • 基金资助:
    国家自然科学基金青年科学基金项目(32102569);陕西省技术创新引导计划项目(2022QFY11-05);陕西省重点研发计划项目(2022ZDLNY01-09)

Research Progress of Rumen-protected Glucose on Nutritional Regulation in Perinatal Dairy Animals

WU Zhili, YAO Junhu, LEI Xinjian*   

  1. College of Animal Science and Technology, Northwest A&F University, Yangling 712100, China
  • Received:2022-12-16 Online:2023-08-23 Published:2023-08-22

摘要: 围产期奶畜的干物质采食量明显下降,同时还需要满足妊娠后期胎儿快速生长发育以及泌乳前期乳汁合成分泌的营养需求,导致奶畜能量代谢紊乱。能量代谢紊乱可引发多种代谢性疾病和炎性疾病,对奶畜生产性能和繁殖机能造成重大负面影响。过瘤胃葡萄糖(rumen-protected glucose,RPG)在消化过程中受瘤胃影响小,可在小肠部位高效吸收进入血液并提供安全高效的能量来源,以此缓解奶畜在围产期出现的不良反应。本文总结了围产期的生理代谢特点,综述了RPG对围产期能量代谢、产奶量、乳成分、氧化应激、免疫和炎症的影响及其机制,并对RPG生物利用率进行了简要评价,以期为RPG在围产期奶畜营养调控中的研究与应用提供参考。

关键词: 过瘤胃葡萄糖, 围产期, 奶畜, 生理代谢, 营养调控

Abstract: During the perinatal period, decreased dry matter intake, increased nutritional requirements of the rapid growth fetus in late gestation and the synthesis and secretion of milk in early lactation result in energy metabolism disorder of dairy animals. Energy metabolism disorders can cause a variety of metabolic and inflammatory diseases, which have a significant negative impact on the performance and reproduction of dairy animals. Rumen protected glucose (RPG) is less affected by the rumen microbes during digestion and can be efficiently absorbed within the small intestine, thereby providing a safe and efficient energy source to alleviate energy metabolism disorder of dairy animals during the perinatal period. This paper summarizes the physiological metabolism characteristics during perinatal period, reviews the effects and mechanisms of RPG on energy metabolism, milk yield, milk composition, oxidative stress, immunity and inflammation of perinatal dairy animals, and briefly summarizes the bioavailability of different type of RPG, in order to provide reference for the research and application of RPG in perinatal dairy animals.

Key words: rumen-protected glucose, perinatal period, dairy animals, physiological metabolism, nutritional regulation

中图分类号: