摘要
铜是机体必需的微量元素之一,1955年Barber等首次发现在生长肥育猪日粮中添加高于正常生理需要量10倍的铜可改进动物的生长速度和饲料利用率,铜作为一种促生长添加剂被广泛使用。然而,高剂量的铜在动物体内代谢缓慢,且主要集中在肝脏,易使动物发生慢性铜中毒;动物未吸收的铜则通过粪便排出,对环境的污染不可小觑;环境中的铜经植物传递至草食动物或人体内,影响着食品安全和人类健康。高铜饲料在养殖业中的正确使用值得我们深思。
Copper is one of essential trance elements of body, in 1995 Barber for the first time found that adding higher normal physiological need 10 times the amount of copper can improve animal pro- ductivity, copper as an additive was widely used to promote growth. However, high dose copper metabo- lized slowly in vivo, and mainly concentrated in the liver, which was easy to cause the animal to have chronic copper poisoning; unabsorbed copper was excreted through the feces, and polluted the environ- ment; copper in soil through the plant passed to the herbivorous or human body, that affected the food safety and human health. So we need a deep thinking about the high dietary copper.
出处
《饲料工业》
北大核心
2014年第1期62-64,共3页
Feed Industry
关键词
高铜饲料
促生长
铜中毒
环境污染
食品安全
high copper feed
promote growth
copper toxicity
environmental pollution
food safety
