The TST combines tissue sampling and animal identification into one, providing fast and clean collection of a tissue sample to test for genetics and disease.

Both the container and the visual ear tags are labelled with the same ID number. During the ear tag application, a tissue sample is collected and hermetically sealed, with preservative, in the sample container. Samples can then be sent to a laboratory for testing, without the need for special packaging or refrigeration. The remaining visual tag is used for animal identification.