The AgSource Food and Environmental Laboratory is your full-service, independent milk testing laboratory with two locations strategically located in Wisconsin.  In operation since 1959, AgSource has more than 45 years of experience in the business of analyzing milk and milk products for payment and herd management purposes.  The Stratford Laboratory provides comprehensive milk culturing and sensitivity testing to aid in milk quality and mastitis control.  AgSource is recognized for providing fast, accurate and reliable service at a fair price, a reputation we have achieved through our constant commitment to the highest level of customer service.

Each year, the AgSource Food and Environmental Laboratories conduct more than one million payment tests.  In addition, over 4.3 million individual cow samples are tested by our DHI Laboratory making AgSource one of the largest milk testing service providers in the United States. No one has more credibility with producers than AgSource.

The laboratory is certified by the Wisconsin Department of Natural Resources (WDNR), Wisconsin Department of Agriculture Trade and Consumer Protection (WDATCP) and Environmental Protection Agency (EPA).