Diagnostic Testing Sampling & Shipping Guidelines

Jun 27, 2021 | Educational Blog

Sample Volumes

  • Johne’s Fecal Test: 3 grams
  • Johne’s Milk Pooled or Bulk Tank: 50 ML
  • A1/A2 or BVD Tissue: Ear Notch
  • All other test types: 4 mL

Sample Storage

  • Milk: fresh, frozen, or preserved
  • Feces: fresh or frozen
  • Tissue: fresh or frozen
  • Blood: fresh only, do not freeze


  • Place sample containers in Styrofoam cooler or any tightly sealable container
  • Pack absorbent material (such as paper towel) around milk, blood and fecal samples to soak up the
    contents in the event of leakage.
  • Place frozen ice packs over samples for proper cooling during shipping.
  • Include Sample Submission Form(s). Place inside container in a plastic bag to avoid damage from
    any leakage or condensation.
  • Seal shipping container with packaging tape.


  • Ship samples Monday – Wednesday to avoid weekend deliveries.
  • US Postal Service, FedEx or UPS are acceptable carriers.
  • Second day delivery/expedited shipping is not necessary unless desired.
  • When using shipping arranged by CentralStar
    • United States Postal Service (USPS) – if size appropriate, the box can be put in your mailbox. If
      the box is too large, contact your postal carrier or take to your local post office.
    • UPS – Contact UPS directly for a pickup or take to your local UPS drop off location.
  • When shipping from Canada, please include the U.S. Department of Agriculture import permit with
    shipping documents.

Ship Samples to

  • CentralStar Michigan Lab, 1163 Comet Lane, Grand Ledge, MI 48837. Phone: 517.333.8381
  • CentralStar Wisconsin Lab, 200 East Kelso Road, Kaukauna, WI 54130. Phone: 920.733.6598

For more information contact:

Michelle Kaufmann, Diagnostic Customer Solutions Advisor • 989.493.2715