奶牛乳脂降低综合症的生物氢化理论研究进展

›› 2007, Vol. 34 ›› Issue (12): 70-73.

奶牛乳脂降低综合症的生物氢化理论研究进展

梁松，王加启，卜登攀，刘仕军，刘亮

中国农业科学院北京畜牧兽医研究所动物营养学国家重点实验室，北京 100094

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2007-12-20 发布日期:2007-12-20

Review: Bio-hydrogenation Theory for Milk Fat Depression Syndrome

LIANG Song, WANG Jiaqi, BU Dengpan, LIU Shijun, LIU Liang

Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, State Key Laboratory of Animal Nutrition, Beijing 100094，China

Received:1900-01-01 Revised:1900-01-01 Online:2007-12-20 Published:2007-12-20

摘要/Abstract

摘要： 脂肪是牛奶中受日粮影响最大的成分。奶牛饲喂高精料日粮或高不饱和油脂均在一定程度上导致乳脂降低综合症的发生，进而影响牛奶加工产品。截至目前，乳脂降低症的主要生物学机制是乳脂合成底物不足以及瘤胃氢化时产生的反式脂肪酸或其它特殊脂肪酸产物抑制了乳腺脂肪酸合成途径所致。作者仅就后者生物氢化理论的研究进展进行综述，力图为相关科技工作者提供一定的参考。

关键词: 乳脂降低; 生物氢化; 反式脂肪酸; 共轭亚油酸; 甲状腺激素敏感蛋白14

Abstract: Milk fat is the most variable component subjected to dietary changes. Diets high in concentrates or containing unsaturated fatty acids always lead to Milk Fat Depression Syndrome (MFD), which is highly detrimental to the dairy industry. The theories trying to explain the MFD are mainly classified into two aspects. In one kind of theories, it is thought that milk fat precursor deficiency is the direct cause for MFD, which is proved incomplete recently. The other kind of theory considers that during rumen biohydrogenation, some unique fatty acid is formed, which inhibit mammary fatty acid synthesis including trans fatty acid theory and biohydrogenation theory. Molecular mechanism underlying mammary fat synthesis involved two key regulation proteins SREBP and S14. This paper gives a review on biohydrogenation theory.

Key words: milk fat depression; biohydrogenation; trans fatty acid; conjugated linoleic acid; spot14 

中图分类号:

S858.23

梁松;王加启;卜登攀;刘仕军;刘亮. 奶牛乳脂降低综合症的生物氢化理论研究进展[J]. , 2007, 34(12): 70-73.

LIANG Song;WANG Jiaqi;BU Dengpan;LIU Shijun;LIU Liang . Review: Bio-hydrogenation Theory for Milk Fat Depression Syndrome [J]. China Animal Husbandry & Veterinary Medicine, 2007, 34(12): 70-73.

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