钾的生理功能及其在畜禽生产中的应用研究进展  

Research Progress of Physiological Roles of Potassium and Its Application in Livestock and Poultry Production

作　　者：朱雯 黄李 石琢 王迪铭 ZHU Wen;HUANG Li;SHI Zhuo;WANG Diming(College of Animal Science and Technology,Anhui Agricultural University,Hefei 230036,China;Zhejiang Dayang Biotechnology Group Co.,Ltd.,Hangzhou 311616,China;College of Animal Science,Zhejiang University,Hangzhou 310058,China)

机构地区：[1]安徽农业大学动物科技学院,合肥230036 [2]浙江大洋生物科技集团股份有限公司,杭州311616 [3]浙江大学动物科学学院,杭州310058

出　　处：《动物营养学报》2024年第10期6121-6128,共8页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：浙江省“三农九方”科技协作计划——反刍动物母子协同健康高产的绿色营养技术研发与示范(2023SNJF050)。

摘　　要：钾是畜禽机体维持细胞稳态、新陈代谢和许多其他生理功能的必需常量矿物质。大多数代谢过程都依赖于钾或受其影响,钾的生理功能包括细胞内外水分平衡与渗透压调节、参与体液酸碱平衡、调节神经肌肉兴奋性、参与能量代谢、防止细胞过度肿胀、作为辅助因子参与酶促反应等。随着畜禽养殖集约化程度越来越高,对钾的需求越来越大。然而,饲料中钾含量较高,一般认为钾不宜缺乏,因此很少关注钾的生理作用。本文总结了钾在畜禽体内的吸收代谢过程、稳态维持机制及其在畜禽生产中的应用,以期为合理利用钾、提高畜禽生产性能、畜牧业高质量地发展提供参考。Potassium,an essential macro mineral,is vital for cellular homeostasis,metabolism and numerous physiological functions in livestock and poultry.Most metabolic processes are relied on or influenced by potassi-um,and the physiological functions of potassium include regulates intracellular and extracellular fluid balance,osmotic pressure,acid-base balance of body fluids,neuromuscular excitability,energy metabolism,prevents cellular over-swelling and acts as a cofactor in enzymatic reactions.With the intensification of livestock produc-tion,the demand for potassium escalates.Though feeds are typically rich in potassium,making deficiency rare and its physiological roles less studied,this article synthesizes the absorption,metabolism and homeostatic mechanisms of potassium in these animals,alongside its applications in livestock production.The aim is to in-form the judicious use of potassium,enhance production performance and foster high-quality development in the livestock industry.

关 键 词：钾 生理功能 吸收代谢 应用 

分 类 号：S811[农业科学—畜牧学]