CentralStar’s Laboratories provide sample analyses on milk, blood, fecal, and tissue samples for a variety of production, disease and health-related traits.
More than 5.3 million samples are processed annually using state-of-the-art equipment and techniques including infrared spectroscopy, flow cytometry, ELISA, PCR, and more.
Diagnostic tests are intended to identify diseases in the cow for their health, and do not determine the “safety” of milk. Testing prices listed effective 10/1/2020.
How To Collect a Blood Sample for Serum Tests
- Vacutainer® Vial
- Double-sided needle
- Needle holder
Be sure to check which type of vial is required for your desired test type.
- Red-top vials: Pregnancy, Johne’s, Leukosis, BVD and Neospora.
- Purple-top vials: A1/A2 and BLV SSI PCR.
Screw needle into needle holder
Insert the Vacutainer vial into the holder
DO NOT puncture the vial stopper
Lift the tail straight up and clean area
Find the midline groove 4 to 6 inches from the base of the tail
Insert the needle about ¼ inch into the groove, perpendicular to the underside of the tail
Engage the vacuum by pressing the vial up puncturing the stopper
If blood does not flow, carefully redirect the needle
DO NOT remove the needle from the tail
Once blood begins to flow maintain needle position
Collect a minimum of 4cc of blood
Disengage the vial from the holder BEFORE removing needle from the tail
Clearly label vials with animal identification
Fill out a sample submission form
Keep vials at room temperature to allow clotting (1 to 2 hours)
Once clotted, keep samples refrigerated until submitted to the lab