M or T
Towel. Submit each towel in a clean Ziploc bag. Towels submitted in the same bag will be tested as one pooled sample due to cross-contamination. Freeze before shipping. See Best Practice: Towels (link) for more detailed instructions on sample collection.
This test may be used to evaluate the adequacy of udder prep towel laundering procedures or storage conditions. Growth of more than 5 colonies of Environmental Streps, Staph species, or Coliforms indicates a likely risk for mastitis.
Results reported: cfu/in2 Staph species, Environmental Streps, Coliforms, Non-coliform Gram-negatives, Bacillus
WHIRL-PAC or clean Ziploc bag