畜牧兽医学报 ›› 2023, Vol. 54 ›› Issue (10): 4050-4060.doi: 10.11843/j.issn.0366-6964.2023.10.005

• 综述 • 上一篇    下一篇

能量负平衡导致奶牛繁殖力下降的机制进展

冯肖艺1,2, 郝海生1, 杜卫华1, 朱化彬1, 崔凯2, 赵学明1*   

  1. 1. 中国农业科学院北京畜牧兽医研究所, 北京 100193;
    2. 青岛农业大学动物科技学院, 青岛 266000
  • 收稿日期:2022-12-26 出版日期:2023-10-23 发布日期:2023-10-26
  • 通讯作者: 赵学明,主要从事家畜胚胎生物技术研究,E-mail:zhaoxueming@caas.cn
  • 作者简介:冯肖艺(1999-),女,山东济南人,硕士生,主要从事动物繁殖研究,E-mail:17806257712@163.com
  • 基金资助:
    国家重点研发计划政府间重点专项(2022YFE0100200);国家自然科学基金国际合作项目(32161143032);农业农村部和财政部:现代农业产业技术体系资助(CARS-36);国家家养动物种质资源库;中国农业科学院科技创新工程(ASTIP-IAS06)

Progress in Mechanism of Reduced Fertility in Dairy Cows due to Negative Energy Balance

FENG Xiaoyi1,2, HAO Haisheng1, DU Weihua1, ZHU Huabin1, CUI Kai2, ZHAO Xueming1*   

  1. 1. Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266000, China
  • Received:2022-12-26 Online:2023-10-23 Published:2023-10-26

摘要: 随着牛奶生产的强化,奶牛生产效率大幅提高,牛奶产量不断增加,高产奶牛的繁殖力却在不断下降,这与奶牛产后能量不平衡相关。当奶牛产后所需能量超过摄入能量时,会出现能量负平衡。研究表明,能量负平衡通过多种机制影响奶牛的繁殖力,其中包括能量负平衡引起奶牛内分泌和代谢机制的改变。因此,本文概述了能量负平衡对奶牛繁殖力的影响,以及能量负平衡导致奶牛繁殖力下降的内分泌和代谢机制,旨在为制定缓解能量负平衡的方法提供参考,以期降低能量负平衡对畜牧业造成的损失。

关键词: 能量负平衡, 奶牛, 繁殖力下降, 机制

Abstract: With the intensification of milk production, cow productivity has increased dramatically and milk production is increasing, however, the fertility of high-yielding cows is decreasing, which is associated with postpartum energy imbalance in cows. A negative energy balance occurs when a cow's postpartum energy requirements exceed her energy intake. Studies have shown that negative energy balance affects cow fertility through multiple mechanisms, including changes in endocrine and metabolic mechanisms in cows caused by negative energy balance. Therefore, this paper provides an overview of the effects of negative energy balance on cow fertility and the endocrine and metabolic mechanisms by which negative energy balance leads to reduced fertility in cows, with the aim of providing a reference for the development of methods to mitigate negative energy balance with the aim of reducing the losses caused by negative energy balance in animal husbandry.

Key words: negative energy balance, cows, reduced fertility, mechanism

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