• Ensure the TSUs are sealed completely by the red stopper with the sample, fluid and green ball inside. • Always align hair follicles and place them under the sticky film on a hair card. • Collect samples from relatively clean and dry areas of the animal. • After collections, store TSU samples at room temperature and out of direct sunlight.
24 American Red Angus Magazine n December 2018
• Only fill blood cards inside the printed circle and ensure they are dry before closing. • Do not submit a blood sample on any animal that was born a twin because of in utero cross contamination. Hair or TSU samples will yield accurate results. • Instead of pulling fine or small hair follicles on calves, try collecting blood or TSUs.