Acta Veterinaria et Zootechnica Sinica ›› 2020, Vol. 51 ›› Issue (4): 660-669.doi: 10.11843/j.issn.0366-6964.2020.04.002

• REVIEW • Previous Articles     Next Articles

Metabolism and Regulation Mechanism of Beta-hydroxybutyric Acid in Ruminal Epithelium Cells of Young Ruminants

ZHUANG Yimin, DIAO Qiyu, ZHANG Naifeng*   

  1. Key Laboratory of Feed Biotechnology of Ministry of Agriculture and Rural Affairs, Feed Research Institute of Chinese Academy of Agricultural Sciences, Beijing 100081, China
  • Received:2019-07-29 Online:2020-04-25 Published:2020-04-21

Abstract: Beta-hydroxybutyric acid (BHBA) is one of the main components of ketones. BHBA is a metabolite of butyrate, which is produced by rumen microbial fermentation, in rumen epithelial cells. BHBA plays an important regulatory role in rumen epithelial cells proliferation and metabolism of ruminants. In recent years, most studies on BHBA have focused on liver ketogenesis, dairy cow ketosis and its effect on lactation. Little information is available in the literature regarding to the relationship and inherent mechanisms between BHBA and rumen epithelial cell growth in young ruminants. This review focuses on the formation and transport of BHBA in rumen epithelial cells, as well as the molecular mechanism of BHBA as a signal molecule regulating the metabolism and proliferation of rumen epithelial cells. This is of great significance to enrich the theory on regulation and development of rumen and the nutritional strategy for the rearing of young ruminants.

Key words: beta-hydroxybutyric acid, young ruminants, rumen epithelial cell, ketogenesis, cell proliferation

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