Please try to get a fresh sample from each animal to be sampled. Picking up a sample from manure that may have been in the barn for awhile will not yield good results. Place the sample into a zip lock style baggie and label with animal's name. Keep all samples refrigerated prior to shipping to slow down the deteriorization of any parasite eggs.
NOTE: While it is important to keep the samples cool, it is also important that they do not freeze.
For a standard fecal test, it is best to have ~10 pellets per sample. For a Baermann or sedimentation test a larger sample is needed, think in terms of 1/3 to 1/2 cup of sample for both Baermann and sedimentation test. If enough sample is not provided and both tests are requested, it will default to the Baermann test and credit your account for the sedimentation test not run.