The California Department of Food and Agriculture (CDFA) Safe Animal Feed Education Program (SAFE) has published a guide outlining how to conduct a mixer study.
A mixer study is the chemical analysis of 10 samples from a single batch of formula feed to evaluate uniformity of a feed mixture. The main objective of mixing feed is to ensure each animal receives all formulated nutrients and medications at the correct rate each day. Inconsistency in formula feeds due to poor mixer efficiency can negatively impact animal performance.
This guide outlines considerations for study design, sampling, evaluation of results and corrective measures for poor results.
View the guidance here: