What unique features must an official animal ID have?

An official animal ID must contain a unique identification number because this number is essential for tracking and tracing animals throughout the livestock supply chain. The uniqueness of the ID ensures that each animal can be individually identified, which is crucial for disease traceability, herd management, and compliance with regulatory requirements. This unique identifier allows for accurate records to be maintained regarding the animal's health history, ownership, and movement.

While there are various features that animal IDs can possess, such as being removable or made from certain materials, the fundamental requirement for a unique ID number is critical in establishing a reliable means of identification in agricultural practices. This helps to enhance biosecurity measures and supports the overall effectiveness of animal health monitoring systems.