David Eisenberg, CEO of Microtracers will present a paper at the Feed 2023 International Conference in Milan dealing with detection of coccidiostat inclusion in feeds. In a survey conducted using Microtracer FS-Blue, approximately half (49 percent) of feeds sampled failed to meet E.U. standards for accuracy of inclusion. This was based on analysis of 115 medicated turkey feeds and 90 non-medicated controls. Four of the medicated samples were devoid of the anticoccidial and the average rate of inclusion attained 64 percent of the desired level of addition. Cross contamination with the anticoccidial was detected in feeds formulated without addition of the anticoccidial as denoted by recovery of Microtracer particles.