Are you looking for a quick and easy DNA sampling method that is reliable, easy to transport, user-friendly and efficient to process at the lab? Allflex Tissue Sampling Units (TSU) provide all of this and much more. These units take an ear punch which can replace tail hair, blood, semen or other sample types used for DNA, Pestivirus or other serology testing. TSUs can be used on cattle, sheep, pigs, deer, alpacas, camels, fish, and more.