Zoos & Aquariums
Science Meets Animal Welfare


Involved for Decades in Animal Welfare
For decades, scientists have trusted Enzo’s steroid hormone ELISA kits to deliver sensitivity and reproducibility. Enzo provides a broad range of immunoassay kits for monitoring stress, reproductive physiology, health and welfare, and survival of wildlife. Our most popular ELISAs for the quantification of 17β-estradiol, progesterone, testosterone, cortisol, and corticosterone have been cited in numerous publications and protocols shared by zoos, aquariums, and conservation scientists worldwide, allowing us to create and share an extensive database of knowledge for methods that benefit creatures both large and small.
Easy to use and consistent ELISA kit
Our laboratory has been using these assay kits for well over 10 years and are very pleased with the consistency of results
Seattle Aquarium

Non-Invasive
Can be used with a variety of samples: saliva, urine, feces and more
Species Independent
Can be used on all animals
Lot-to-lot consistency
Extremely reproducible results
Corticosterone ELISA Kit
- Sensitive measurement of corticosterone, detecing as little as 27 pg/ml
- Higher throughput with results from up to 39 samples in duplicate in just 3 hours
- Flexibility built-in, measure corticosterone in any species
- Trusted and routinely used to monitor stress levels in zoo animals

See how researchers are using our kit to detect corticosterone levels in bird serum
Testosterone ELISA Kit
- Highly sensitive measurement of testosterone, detecting as little as 5.67 pg/ml
- Steroid displacement reagent provided to assay free or total testosterone
- High throughput format with results in <3 hours for up to 39 samples in duplicate
- Excellent consistency lot-after-lot ideal for longitudinal studies

See how a researcher using the Enzo Life Sciences Testosterone ELISA measured Testosterone levels in lizard
Absorbance 96 Plate Reader
Plate Readers Just Got Personal
- Perfect for ELISA Kits
- Endpoint and kinetic assays
- Quantitative and qualitative evaluation
- Custom protocols and reports