关键词: 兽用抗生素, 农田系统, 消解与迁移, 残留, 抗性基因, 农产品安全

Abstract: Antibiotics are used in large quantities for veterinary purposes or to promote the growth of animals， and can be excreted as their parent compound and/or metabolites and thus may be released to the environment by grazing animals on pasture or by the spreading of manure to land. The antibiotics may also affect human and environments by the ways of transfer and spread of antibiotic resistance genes. Biologically activity of the veterinary antibiotics and their metabolites induced by application of manure and slurry in soil environments can be kept for a long time. Therefore， the presence of veterinary medicines in the agricultural environments may be a cause for concern. While the promotion of antibiotic resistance in naturally occurring pathogens is the major concern， other issues associated with antibiotics in the environment have recently gained attention. Reorganization of the residue， transfer pattern， and phytotoxicity of veterinary antibiotics in agricultural systems is very important for understanding environmental behavior of the antibiotics and ensuring food safety. In this paper， sources and residue of veterinary antibiotics in agricultural soils， uptake behavior of veterinary antibiotics by crops， effects of veterinary antibiotics on soil microorganisms， adsorption of veterinary antibiotics by soil compounds， and transformation and transfer of veterinary antibiotics in agricultural systems were reviewed. Further researches about behavior of veterinary antibiotics in agricultural systems are suggested.

Key words: veterinary antibiotics, agricultural system, degradation and translocation, residues, antibiotic resistance genes, safety of agricultural