基于“肠道菌群-胆汁酸”轴改善热应激畜禽肉品质的研究进展
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张文彦(1999—),女,江西鹰潭人,硕士研究生,从事家禽动物营养研究。E-mail: zhangwenyan9911@163.com |
Copy editor: 菅景颖
收稿日期: 2023-07-12
网络出版日期: 2024-01-12
基金资助
国家自然科学基金项目(32260852)
国家自然科学基金项目(32060760)
Research Progress in Improving Meat Quality of Heat-Stressed Livestock and Poultry Based on “Intestinal Flora-Bile Acid” Axis
Received date: 2023-07-12
Online published: 2024-01-12
畜禽肉品质是对肉的理化特性进行综合评价的重要经济性状,而热应激一直是畜牧生产中降低畜禽肉品质的主要因素之一。肠道菌群可影响动物对养分的消化吸收、新陈代谢及免疫功能等,胆汁酸能够促进脂肪和脂溶性物质消化吸收并作为信号分子调控机体代谢活动。肠道菌群参与胆汁酸的修饰过程,胆汁酸又能调控肠道菌群结构,它们之间存在双向调节作用。肠道菌群、胆汁酸及其受体的互作形成了“肠道菌群-胆汁酸”轴,调节着碳水化合物、脂质和能量代谢等许多生理过程,可能进一步影响着肉品质。大量研究表明,热应激造成畜禽生产性能的下降与肠道菌群、胆汁酸代谢的失调有关,但是热应激与“肠道菌群-胆汁酸”轴的关系不够明确。本文就热应激影响畜禽肉品质、“肠道菌群-胆汁酸”轴与热应激的关系以及通过该轴改善热应激导致的畜禽肉品质下降的可能机制进行综述,为解决热应激降低畜禽肉品质这一问题提供参考。
张文彦 , 周倩 , 瞿明仁 , 许兰娇 . 基于“肠道菌群-胆汁酸”轴改善热应激畜禽肉品质的研究进展[J]. 动物营养学报, 2024 , 36(1) : 55 -63 . DOI: 10.12418/CJAN2024.006
Meat quality of livestock and poultry is a comprehensive evaluation of the physical and chemical characteristics of meat. However, heat stress is one of the main factors contributing to the deterioration of meat quality in livestock and poultry. Intestinal flora has the function of influencing nutrient digestion and absorption, metabolism and immunity of the animals. Bile acids promote the digestion and absorption of fat and fat-soluble substances, and act as signaling molecules to regulate the metabolic activities of the organism. They regulate each other, the intestinal flora participates in the modification process of bile acids, and bile acids can regulate the composition of the intestinal flora. The interactions between the intestinal flora, bile acids and their receptors from the “intestinal flora-bile acid” axis, which regulates many physiological processes such as carbohydrate, lipid and energy metabolism, and may further affect meat quality. A large number of studies show that the decline in performance of heat-stressed livestock and poultry is related to the dysregulation of intestinal flora and bile acid metabolism, but the relationship between heat stress and the “intestinal flora-bile acid” axis is not clear enough. This review summarized the effects of heat stress on the meat quality of livestock and poultry, the relationship between the “intestinal flora-bile acid” axis and heat stress, and the possible mechanisms to improve the degradation of meat quality caused by heat stress through this axis. It also provided a solution to the deterioration of meat quality in livestock and poultry due to heat stress.
Key words: heat stress; meat quality; intestinal flora; bile acids; bile acid receptors
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