隐性乳房炎奶牛乳蛋白含量降低的信号转导机制探讨

乳蛋白是决定牛奶营养品质的主要乳成分之一,具有较高的营养价值,含有人体几乎所有的必需氨基酸。乳蛋白含量和组成受多种因素的影响,除品种、胎次、环境、奶牛泌乳阶段、饲粮组成与营养水平外,疾病也是影响乳汁中乳蛋白含量和组成的重要因素。其中,奶牛隐性乳房炎可以引起乳汁中乳蛋白含量的降低。本文主要探讨乳蛋白的合成机理及隐性乳房炎时乳蛋白含量降低的信号转导机制,旨在为研究在奶牛患隐性乳房炎条件下提高乳蛋白含量的方法提供一些思路和参考。

Signal Transduction Mechanism of Milk Protein Content Depression Induced by Subclinical Mastitis in Dairy Cows

Milk protein is one of main substances determining nutritional quality of cows’ milk. Milk protein has high nutritional value and contains almost all essential amino acids required by human. The content of milk protein is affected by many factors, in addition to breed, parity, environment, lactation stage, and diet compo?sition and nutrient level. Diseases are also an important factor affecting milk protein content and composition, and subclinical mastitis can cause milk protein to reduce. This paper mainly expounded the mechanism of milk protein synthesis and signal transduction mechanism of milk protein content decreased under by subclinical mas?titis, hoping that the review could provide a reference for further study on methods to improve the content of milk protein.