Hi  Chris.  https://extension.umn.edu/horse-nutrition/understanding-your-hay-analysis
. Here is a link that you may find helpful in answering your question: I found it here in our files.  
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Trisha DePietro
Aug 2018
NH
Primary Responder

New CH for Dolly  https://ch.ecirhorse.org/case-history.php?id=50  
Dolly and Hope's Case Histories
Dolly's Photos 
Hope's Photos 
HOW TO SEARCH THE ARCHIVES: https://ecir.groups.io/g/main/wiki/1993