摘要
在高等生物中,微量元素的摄入主要通过呼吸系统或食物链进行,许多危险元素或化合物(如金属)沿着食物链积累。这样,食物链成为毒物进入高等生物的主要通道。此外,这些有毒元素通常是人为造成的,因此,它们在环境中的浓度随城市、农业和工业排放的增加而增加。随着环境污染的日益严重,有必要开展有毒金属接触评价研究。有毒元素根本不能代谢,同时有些金属会不可逆地与身体组织结合,如铅会与骨骼结合,镉会与肾脏结合。本文综述了从饲料到动物源性食品(肉类、器官、牛奶和蛋类)有毒物质的携带情况,对可能导致动物源性食品残留的环境污染物的控制提供理论基础。
In higher organisms,the intake of trace elements occurs primarily through the respiratory system or the food chain,and many dangerous elements or compounds,such as metals,accumulate along the food chain.In this way,the food chain becomes a major gateway for persistent poisons to enter higher organisms.In addition,these toxic elements are often man-made,so their concentrations in the environment increase as urban,agricultural and industrial emissions rise.With the increasingly serious environmental pollution,it is necessary to carry out research on toxic metal contact evaluation.Toxic elements cannot be metabolized at all,and some metals bind irreversibly to body tissues,such as lead to bones and cadmium to the kidneys.This paper reviews the transport of toxic substances from feed to animal-derived foods(meat,organs,milk and eggs),and provides a theoretical basis for the control of environmental pollutants that may cause residues of animal-derived foods.
作者
李俊霞
LI Junxia(Liaocheng University,Liaocheng,Shandong Province 252000,China)
出处
《中国饲料》
北大核心
2020年第14期5-7,共3页
China Feed
关键词
动物产品
有毒元素
残留
环境健康
animal health
toxic mineral
residue
environmental health
