I used to do IgG's on all the foals, but gave that up. After a while you just seem to "know" if there's a problem by watching baby's antics, movement, nursing, etc. So, after a while, I only tested the ones I had a concern about. Even those were fine -- but I felt better testing a couple that concerned me.
THIS LITTLE SPITFIRE can't have a thing wrong with her!! EXCEPT she doesn't know how to stop !!
Just beautiful!