Denali Studd

The Horseracing Integrity & Welfare Unit (HIWU) provided this Q&A with questions submitted by Craig Bandoroff of Denali Stud. Although I've read explanations and have had people try to explain it to me I still don't understand why we test to such a small level.  As I understand it a picogram is one-trillionth of a gram.  How can that have any affect on a 1200-lb horse?  Why do we test to such a small level?  Are we using the ARCI recommended guidelines? It is important to remember that a picogram...