Ag Health Laboratories provides premium testing and analysis services in support of Ag Producers, with the intent of informing higher quality and precision management in support of effective operations and animal welfare. 


Joe Troncoso

Lab Technician II - Microbiology

Joe is a senior lab tech specializing in microbiology conducting milk culturing and blood analysis. BS - Microbiology from Heritage University.

Madison Trevino

Lab Manager - Feed

Team member since September 2012, Maddie leads the sample processing team, provides client support for all feed lab services, and keeps things running smoothly. Likely to greet you with a smile. BAS in Business Management with a minor in Agribusiness from YVC.

Isela Vargas

Feed Lab Technician II

Isela is a senior lab tech specializing in Wet Chemistry analysis for the feed lab. Team member since March 2019, Isela is known for her precision and attention to detail.  


Crystal Maiden 

Technical Director/Data Scientist

Team member since June 2005, Crystal has helped shape Ag Health Laboratories development and growth in support of clients needs. Crystal's primary duties include research, data management and analysis, as well as assay and method development within the lab. BS in Animal Science from Washington State University. (GO COUGS!!).

Lynn VanWieringen, PhD       

Director - Feed and Forage 

Dr. VanWieringen is an expert in feed and forage analysis and quality. A team member since 2009, Lynn's main focus is supporting clients through in depth analysis and quality control of all testing completed in our feed labs. Lynn has a PhD in Ruminant Nutrition from Washington State University.  

Fred J. Muller, DVM 

President - Ag Health Labs      
Founder and owner of Ag Health Labs, Dr. Muller is a practicing Veterinarian specializing in bovine health and milk quality with over 25 years of industry experience. DVM from Washington State University in 1997 and BS in Animal Science from Washington State University in 1993.