乳糖合成与分泌的机制及其与奶畜泌乳性能的相关性分析  

Mechanism of Lactose Synthesis and Secretion and Its Correlation to Lactation Performance of Dairy Animals

作　　者：李戎诺 夏超 邓露 LI Rongnuo XIA Chao DENG Lu(College of Animal Science and Technology,Northwest A&F University,Yangling 712100,China)

机构地区：[1]西北农林科技大学动物科技学院,杨凌712100

出　　处：《动物营养学报》2023年第5期2786-2796,共11页CHINESE JOURNAL OF ANIMAL NUTRITION

基　　金：国家自然科学基金面上项目(32070782)。

摘　　要：乳糖是乳汁中主要营养成分之一,在调控奶牛产奶效率过程中发挥重要作用。本文从奶牛的乳腺结构、乳糖合成底物、乳糖合成调控、乳糖分泌等方面进行了综述;系统阐明了乳糖通过维持囊泡渗透压调控奶牛产奶效率的生物学基础;并通过分析不同泌乳动物乳中乳糖含量与产奶量、乳蛋白含量、乳脂含量的相关关系,揭示了乳糖调控产奶效率的生物学功能,为提高奶牛产奶性能提供理论基础。Lactose is one of the main nutrients in milk and plays an important role in regulating milk production in dairy cows.This paper reviews lactose synthesis from the mammary gland structure,lactose synthesis substrate,lactose synthesis regulation and lactose secretion in dairy cows;systematically elucidates the biological theory of lactose in regulating milk production by maintaining vesicular osmotic pressure.We also analyzed the relationship between lactose content and milk yield,milk protein and milk fat contents in different lactating animals to reveal the biological function of lactose in regulating milk production,and to provide a theoretical basis and potential targets for improving milk production performance.

关 键 词：乳糖合成 乳成分 产奶效率 相关性分析 

分 类 号：S823[农业科学—畜牧学]