Advance in Ecological Environment Impact of Veterinary Drug Residues

Thousands of tons of pharmaceutically active substances are used in veterinary medicines in intensive animal and poultry production,and most of the drugs are poorly absorbed by animals and excreted with the animal feces.The veterinary medicines can cause various kinds of harmful impacts to the environment.Now the relevant research has been a hot research all over the world.With the excreted to the environment,the veterinary medicine can be accumulated in the soil and water and produce all sorts of reaction and some medicine can cause toxic effect to animals,plants and microorganisms.The article summarized the residue,the environmental impact,the transformation and the development direction of the veterinary medicine in the environment to supply frame of reference for further research.