猪日粮中铜、铁、锰、锌减量使用技术研究进展

Research progress on reduction of copper, iron, manganese and zinc in pig diet

微量元素在猪的生长发育、生产繁殖、健康免疫等方面有重要的作用,生产实际中为某种目的经常会在饲料中添加超出猪生理需求剂量的微量元素。然而,长期过量的微量元素使用会带来一系列的负面影响。本文旨在对猪日粮中铜、铁、锰、锌使用的现状、过量添加的负面影响及减量使用的技术措施进行综述,以期为微量元素的有效、合理使用,保护环境提供参考。

Trace elements play an important role in the growth and development,production and repro duction,health and immunity of pigs.In practice,trace elements that exceed the physiological require ments of pigs are often added to the feed for a certain purpose.However,long-term excessive use of trace elements will bring a series of negative effects.This article reviews purpose of this paper is to summarize the current situation of the use of copper,iron,manganese and zinc in pig diet,the nega tive effects of excessive addition and the technical measures to reduce the amount of use,so as to pro vide references for the effective and rational use of trace elements and environmental protection.