The Avid microchip is a transponder that measures 12 millimeters placed inside a glass capsule coated with Parylene C, a substance preventing the chip from irritating surrounding tissue or migrating, states Avid Identification Systems. The microchip is encoded with a unique ID number entered into a pet recovery database.
The microchip is typically injected between the shoulder blades, says Avid. The injection is generally considered a painless procedure, similar to receiving a vaccination, and the biocompatible glass capsule prevents or reduces the chances of a negative reaction. The microchip is permanent and does not need to be replaced.
Shelters and rescues process an estimated six to eight million pets per year, reports Avid. Overcrowding and limited resources are common problems that limit the amount of animals that each shelter can afford to care for. However, most facilities in the United States scan animals that arrive; pets that have been microchipped and registered can be returned to their owners, whose contact information is stored in the pet recovery database.
Registering is a crucial step in the microchipping process, warns Avid. A pet can be microchipped, but if the owner does not log their information in the database, shelters cannot easily return an animal. Microchips provide a permanent form of identification that cannot be lost or removed.