综述 Review

改善奶牛氮磷利用效率的营养策略

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  • 浙江大学动物科学学院奶业科学研究所, 杭州 310058
刘建新(1958—),男,浙江富阳人,教授,博士生导师,研究方向为反刍动物营养学。E-mail:liujx@zju.edu.cn

收稿日期: 2014-08-13

  网络出版日期: 2015-01-23

基金资助

国家科技支撑计划(2012BAD12B02);国家奶牛产业技术体系(CARS-37)

Nutrition Strategies for Improving Nitrogen and Phosphorus Utilization Efficiency in Dairy Cows

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  • Institute of Dairy Science, College of Animal Science, Zhejiang University, Hangzhou 310058, China

Received date: 2014-08-13

  Online published: 2015-01-23

摘要

氮磷在奶牛生长、发育和生产过程中发挥着重要作用,但在实际生产中,饲粮氮磷含量往往过高,而奶牛对于氮磷的利用效率普遍偏低,这不仅会造成饲料资源的浪费,而且加重了氮磷的排放,导致严重的环境污染。合理减少饲粮氮磷含量、提高奶牛机体对氮磷的利用效率具有重要的现实意义。因此,本文主要从影响氮磷利用效率的因素,以及改善奶牛氮磷利用效率的营养策略2个方面进行了综述,以期为提高奶牛氮磷利用效率,减少氮磷向环境的排放,提高奶牛场经济和生态效益提供理论依据。

本文引用格式

刘建新, 李珊珊, 张彬, 刘红云 . 改善奶牛氮磷利用效率的营养策略[J]. 动物营养学报, 2014 , 26(10) : 3129 -3134 . DOI: 10.3969/j.issn.1006-267x.2014.10.026

Abstract

Dietary nitrogen and phosphorus play important roles in the process of growing, development and production of dairy cows. But in the practical production, the contents of nitrogen and phosphorous in diets are higher, while the utilization efficiency are lower, and that not only results in the waste of feed resources but also aggravates the excretion of nitrogen and phosphorous which in turn causes serious environmental pollution. So it has great practical significance in reducing the contents of nitrogen and phosphorous in diets reasonably and increasing dietary nitrogen and phosphorous utilization efficiency. In order to improve nitrogen and phosphorus utilization efficiency in dairy cows, reduce nitrogen and phosphorus excretion, and increase economic and ecologic efficiency of dairy farm, this article mainly summarized the factors of influencing dietary nitrogen and phosphorous utilization and recommended the nutrition strategies for improving nitrogen and phosphorus utilization efficiency.

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