Cattle identification and traceability are important for disease control and also for maintaining consumer confidence in farm produce
Cattle are given a ceramic bolus in their food, which contains a transponder and is designed so that once it has been swallowed it remains in a specific stomach of the cow, meaning that the exact location of the transponder inside the animal is always known. Alternatives are the well known yellow ear tags.
Cats, dogs and other pets including fish are usually fitted with a thin cylindrical transponder in a glass case, which is injected under the skin
It serves as a permanent identification system that will always be with your pet. Nearly all animal shelters routinely scan every animal upon intake for the presence of a RFID. Most veterinary clinics also have RFID readers. Each tag contains a unique ID number that can be read by a reader and matched with owner information in a comprehensive database. A tag is effective in reuniting a lost pet with his owner only when the owner’s contact information in the database is accurate.
For small animals, the transponders are usually provided as ear tags
Sheep must be tagged in accordance with the rules set down under the National Sheep Identification System and only tags that have been approved for use under the NSIS may be used. Goats and sheep must be officially identified and require a certificate of veterinary inspection. Official identification for small animals like goats and sheep is an ear tag.