The Progress of Study on the Drug Resistance of Coccidia in Chickens

In the course of using anticoccidial drugs for controling coccidiosis in chickens,there has occurred the drug resistance to coccidia for many years.In this article,we descript the mechenism of occurance,main characteristics,determining methods of the drug resistance to coccidia and the recovery of sensitive coccidia.In the end,we give an prosepect in coccidial drug resistance in chickens and provide a scientific proof for controlling the coccidiosis in better way in chickens.