Abstract: Recent years have seen rapid progress in dairy cattle genomics with many achievements having been made up to now. For the synthesis of protein and fat, the key positive regulatory genes STAT5, mTOR and SREBP and the key negative genes SOCS3 and GSK3Beta have been established; however, their mechanisms of action need further research. Additional regulatory genes for milk secretion are needed to elucidate the mechanism responsible for controlling milk quality.

Key words: dairy cow; milk secretion; key gene; milk protein; milk fat

摘要： 近年来奶牛泌乳基因组学研究快速发展,在奶牛营养基因组学领域取得很多研究成果.已确定STA T5、mTOR、SREBP等乳蛋白和乳脂肪合成正向调控关键基因及SOCS3、GSK3Beta等负向调控基因,但其作用机制尚待进一步研究,更多的泌乳关键基因尚待挖掘以阐明乳品质的形成机理.

关键词: 奶牛；泌乳；关键基因；乳蛋白；乳脂肪