Spectrum Labs performs canine, feline and equine in-vitro allergy testing. Spectrum Labs says it combined the RAST and ELISA testing methods for its in-vitro allergy testing, which eliminates the need to sedate an animal, shave it and administer up to 62 injections. The company can test for up to 135 allergens in one panel, including trees, grasses, weeds, fungi, dust and petfood ingredients.