纳米补充剂对奶牛的哺乳性能,营养消化和乳腺发育的影响

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Evaluation of Mammary Gland Development and Function in Mouse Models

Published on: July 21, 2011

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Yapeng Liu¹, Jing Zhang¹, Lijun Bu¹

¹College of Animal Science, Shanxi Agricultural University, Taigu, Shanxi, PR China.

Animal biotechnology

|December 12, 2023

概括

乳牛中纳米 (NANO-Se) 补充剂通过改善乳头发酵和营养物质消化能力来增强乳生产和脂肪合成. 它还积极调节乳腺发育和新陈代谢,这表明牛奶养殖的好处.

科学领域:

动物营养和新陈代谢
乳制品科学乳制品科学
生物化学生化学

背景情况:

是动物健康和生产力至关重要的微量元素.
与传统的来源相比,纳米 (NANO-Se) 的生物可用性得到了提高.
了解NANO-Se对乳腺功能的影响对于优化奶牛表现至关重要.

研究的目的:

评估NANO-Se补充剂对荷尔斯坦乳牛的牛奶产量和牛奶脂肪酸合成的影响.
研究NANO-Se对乳腺发育和代谢调节的影响.
确定最佳的NANO-Se剂量,以提高奶牛的生产力和健康.

主要方法:

48只荷尔斯坦牛被分为四组,接受不同剂量的NANO-Se (0,0.1,0.2,0.3 mg/kg DM).
评估牛奶产量,能量和脂肪校正牛奶 (FCM),牛奶脂肪酸概况和营养消化能力.
分析了体发酵参数,血液代谢物和与牛奶脂肪合成和乳腺发育相关的基因/蛋白质表达.

主要成果:

纳米-Se补充剂增加了FCM和牛奶脂肪产量,并线性增加了牛奶乳糖产量.
使用NANO-Se观察到干物质,有机物质,原蛋白和纤维组件的消化能力得到改善.
纳米-Se调节了体发酵,增加了有益的血液代谢物,并对乳脂合成和乳腺细胞增殖的关键基因/蛋白质进行了上调.

结论:

补充NANO-Se有效地提高了奶牛的牛奶产量和牛奶脂肪合成.
这些益处归因于改善的发酵,营养消化和刺激乳腺基因/蛋白质表达.
NANO-Se代表了优化奶牛性能和乳腺健康的有希望的补充剂.

关键词:

哺乳期的表现哺乳期的表现乳腺的发育乳腺的发育牛奶脂肪合成牛奶脂肪合成纳米是的材料之一.营养物质的消化能力.

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