Related Experiment Video
Updated: Jul 26, 2026

Using Deuterium Oxide as a Non-Invasive, Non-Lethal Tool for Assessing Body Composition and Water Consumption in Mammals
Published on: February 20, 2020
Select Venous Analytes and Fibrinogen Determination Using Two Methods in Brown Pelicans
Amelia Gessner-Knepel1, Jordan Gentry1, Sharon Schmalz2
1Zoological Medicine, Small Animal Clinical Sciences, College of Veterinary Medicine & Biomedical Sciences, Texas A&M University, College Station, TX 77843, USA.
Updated reference intervals for brown pelicans were established using blood samples from healthy, rehabilitated birds. The Abaxis VSPro was found unsuitable for avian fibrinogen testing.
Area of Science:
- Veterinary Medicine
- Wildlife Rehabilitation
- Clinical Pathology
Background:
- Brown pelicans face threats from environmental disasters and human activities, requiring medical care.
- Accurate diagnostic and monitoring tools are crucial for rehabilitating brown pelicans.
- Existing reference intervals for this species are outdated and based on small sample sizes.
Purpose of the Study:
- To establish updated reference intervals for venous analytes in brown pelicans.
- To assess the suitability of the Abaxis VSPro for measuring fibrinogen in avian species.
Main Methods:
- Blood samples were collected from 71 presumed healthy brown pelicans during pre-release examinations.
- Analyzed venous analytes using Abaxis VS2 Avian/Reptile Chemistry panel, iSTAT CG4+, and iSTAT Chem8+.
- Measured fibrinogen using heat precipitation (gold standard) and the Abaxis VSPro for comparison.
Main Results:
- Proposed reference intervals for various blood analytes in brown pelicans were determined.
- Fibrinogen measurements from the Abaxis VSPro were not comparable to the gold standard method.
- The Abaxis VSPro is not recommended for fibrinogen analysis in brown pelicans.
Conclusions:
- This study provides essential updated reference intervals for brown pelican hematology and clinical chemistry.
- The findings highlight the limitations of the Abaxis VSPro for avian fibrinogen testing.
- Accurate species-specific reference intervals are vital for effective wildlife rehabilitation and conservation.
Related Concept Videos
Assessment of blood pressure in brachial artery(one-step method)
Prepare for the Procedure:
Assessment of blood pressure in brachial artery(two-step method)

