奶牛乳脂合成及其影响因素

doi:10.16431/j.cnki.1671-7236.2018.01.012

Abstract

Abstract:

Milk fat is a kind of natural fat and a main nutritional component of milk. Milk fat percentage is an important index to evaluate milk quality. Lower milk fat percentage could limit dairy industry development.Recently,the milk yield increased,but not milk fat percentage. The milk fat percentage is 3% to 4% in usual,however,milk yield restricts the increase of milk fat percentage and how to increase it become a hot area of lactating research. To further study and solve this problem,we reviewed the research progress on milk fat synthesis and the factors influencing milk fat including diet,rumen microorganism and genetic factor. We also reviewed the genes and signaling pathways related to milk fat synthesis,which includes SREBPs,PPARs,CIDEC,as well as mTOR signaling pathway. Milk fat synthesis is a dynamic process and complex network regulated to a lot of genes,and the researches of the interaction between the various signaling pathways can provide theoretical basis for artificial regulation milk fat synthesis. These information will provide the idea to improve milk fat content,as well as lactation biology.

Key words: dairy cow; milk fat; diet factor; genetic factor; signaling pathway

CLC Number:

S823.9

LV He, DUAN Xiaoyu, ZHOU Jinyu, SONG Shuyuan, JIANG Minghui, HOU Xiaoming, LIN Ye. Milk Fat Synthesis and Its Influence Factor in Dairy Cow[J]. , 2018, 45(1): 93-99.

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Milk Fat Synthesis and Its Influence Factor in Dairy Cow

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