Thompson Bishop Sparks State Diagnostic Lab accepts fecal samples from dogs, cats, horses, cattle, sheep, goats, alpacas, and llamas. We can perform fecals by centrifugation for parasite egg identification, direct smears, or for the appropriate species, we can analyze specimens via quantitative counts of eggs utilizing the McMaster's or Kaplan Lab McMaster's techniques. Fecal samples should be at least golf-ball sized, and preferably fresh, collected either from the animal directly, or within 2-4 hours after being passed. Samples should be kept chilled while being transported to the lab.