Abstract:Sampling an animal feed containing a granulated analyte is extremely difficult. A granulated feed additive, Tylan® (Elanco, tylosin), was used to demonstrate how a granulated product can increase assay variability if steps are not taken to reduce and control this variability. The number of tylosin granules was determined for Granulated Tylosin Concentrate, the active ingredient of Tylan Premix. Multiple weighings of 3 lots of the concentrate were prepared, and the average number of granules per gram of concent… Show more
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